Multiple choice

What is the value of a in 3x2 - 4x = 72 while comparing it with standard quadratic equation?

  1. 3

  2. 1

  3. -4

  4. -72
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A Correct answer
Explanation

The standard form is ax^2 + bx + c = 0. Rearranging 3x^2 - 4x = 72 gives 3x^2 - 4x - 72 = 0. Comparing this to ax^2 + bx + c = 0, a = 3.

AI explanation

The standard form of a quadratic equation is a x squared plus b x plus c equals 0. By moving 72 to the left side, the equation becomes 3 x squared minus 4 x minus 72 equals 0. Comparing this to the standard form, the coefficient of x squared is the value of a, which is 3.

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