Multiple choice

Find the correct mathematical statement

  1. ( x + 2 ) 2 = x2+4

  2. ( a2+b2)=( a + b )2

  3. 2/3x +2 = 2/3x +2

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Option C is an identity (2/3x + 2 = 2/3x + 2). Option A is incorrect because (x+2)^2 = x^2 + 4x + 4. Option B is incorrect because a^2 + b^2 is not (a+b)^2.

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