### Introduction to unknowns - class-VI

Description: introduction to unknowns | |

Number of Questions: 72 | |

Created by: Vijay Palan | |

Tags: numbers and algebra algebraic expression polynomials unchanging relations fundamental concepts real numbers algebra making sense of algebra unknown numbers maths fundamental concepts - algebra variables concept of algebraic variables algebraic expressions and operations on them algebraic expressions introduction to algebra |

Zero degree polynomial is considered as

In ancient times, algebra is used to find

al-Khwarizmi was a ______ scientist.

Determine the constant term in the expression: $4x^2+5x^6-7x^2-7+2x^2-7x^6$.

______ used algebraic equations and notations in presenting problems and solutions in Arithmetica.

Find the constant for the given polynomial: $x^3+2x^2-1+x^5-5x(x^2)$

In a quadratic equation, $3x^2+x-3$, what is the constant term?

$abc=$

State True or False, if the following expression is polynomial in one variable

$4x^2-3x+7$

State True or False, if he following expression is polynomial in one variable

State True or False, if the following expression is polynomial in one variable.

State whether true/false:

If $\displaystyle A=\pi \left ( R^{2}-r^{2} \right )$, then $R$ is equal to

The sum of the reciprocals of $\displaystyle\frac{x+3}{x^2+1}$ and $\displaystyle\frac{x^2-9}{x^2+3}$ is

If $\displaystyle x^{2}-3x+1=0$ then the value of $\displaystyle x-\frac{1}{x}$ is

If $\displaystyle x-\frac{1}{x}=3$; then the value of $\displaystyle \frac{3x^{2}-3}{x^{2}+2x-1}$ is

If $x=2$, $y=3$, then $x^x+y^y$ is equal to

If $\displaystyle x^{2}-11x+1=0 $ then the value of $\displaystyle x+\frac{1}{x}$ is

If $\displaystyle x+\frac{a}{x}=b$ then the value of $\displaystyle \frac{x^{2}+bx+a}{bx^{2}-x^{3}}$ is

If $x<-1$, then $x^2$

If $a+b+c=0$ then $a^3+b^3+c^3$ is equal to

If $\displaystyle a-\frac{1}{3}=\frac{1}{a}$ then the value of $\displaystyle a^{3}-\frac{1}{a^{3}}$ is

Which of the following terms contain maximum number of variables ?

Determine the constant in the equation $3x^2+5y^2=7$?

How many variables are there in the expression $5x^3+25xy$ ?

What is a constant?

Which of the following contains minimum number of variables?

Which expression has more variables ?

(1) $x^3+3x^2+5x^2y^2+7y$

(2) $5x+3y+z$

How many constants are there in the expression $3x^2+y$ ?

What is a variable?

Find the constant in the polynomial $x + 5$

Identify the number of constants in the expression $5x^3-8xy$.

How many variables are there in the algebraic expression $ax^2+bxy+cy^2$ where $a, b, c$ are constants ?

Which of the following is correct?

Find the constant in the polynomial $y^{3} + y^{2} + y$

The variable in the polynomial $z^3+2z^2+5z+1$ is

The variable in the polynomial $x^2+3x+5$ is:

Who is the father of algebra?

An important development in algebra in the $16^{th}$ century was the

What is the literal meaning of algebra?

$-6$ is the ______ in $q(y)=y^3-3y^2-6+y$

Who used the symbol heap for the unknown in algebra?

What is the value of the constant term in the expression, $23x^3+12x^2-6x-12$?

How many degree of polynomials are there in constant term?

The constant term of $0.4x^{7} - 75y^{2} - 0.75$ is ___

Which one is the constant term of $4x^{3} - 3x^{2} + 2x - 5$.

Classify the following polynomial as polynomial in one variable, two variables etc.

Classify the following polynomial as polynomial in one variable, two variables etc.

Classify the following polynomial as a polynomial in one variable, two variables, etc.

Consider the polynomial $\dfrac{x^{3}+2x+1}{5}-\dfrac{7}{2}x^{2}-x^{6}$.

A real variable is a variable whose values are real numbers.

Given $x^2 + \dfrac{1}{N^4} - 142$ Based on the above date answer the following questions. The value $\left(x^2, \dfrac{1}{x^a}\right)$ is

Which of the following expressions is a polynomial in one variable?

The output of $z^3+2z^2+5z+1$, where $z= 1$, is

What is the output of $x^2+3x+5$, where $x$(variable) = $2$?

What is the output of $x^2+3x+5$, where $x$(variable) = $-1?$

The output of $z^3+2z^2+5z+1$, where $z= -1$

The output of $z^3+2z^2+5z+1$, where $z= 0$

If $\dfrac{2+3}{x}=\dfrac{2+x}{3}$

What one value for $x$ can be correctly entered into the answer grid?

Some situations are given below. State true or false:

The temperature of a day is variable.

Some situations are given below. State true or false:

Length of your classroom is constant.

Some situations are given below. State true or false:

Height of growing plant is constant.

Some situations are given below.State true or false.

The number of days in the month of January are varying.

Solve: $(3x-5)^2 +(3x+5)^2$ = $(18x+10)(x-2)$

For $|x| < 1$ the constant terms in the expressions of $\dfrac {1}{x-1(^{2})(x-2)}$ is

If ${x}^{3}+m{x}^{2}+nx+6$ has $(x-2)$ as factor and leaves a remainder $3$ when divided by $(x-3)$ find the values of $m,\,n$

The constant term in expression $5xy-4x+8$ is

If the point (2, -3) lies on $\displaystyle kx^{2}-3y^{2}+2x+y-2=0$ then k is equal to

$n^2-n+1$ is an odd number for all

Find the number of variables in the expression: $3x^2+25xy+7x2+5y^2+z^2$