Multiple choice

Fine the incorrect mathematical statement

  1. 4(x - 5) = 4x - 20

  2. 4x + 5x = 8x2

  3. x(3x +2) = 3x2 + 2x

  4. 2x + 3x = 5x
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Option B states 4x + 5x = 8x², which is incorrect. When adding like terms 4x and 5x, we add the coefficients: 4x + 5x = 9x, not 8x². The other options A, C, and D all show correct algebraic expansions and simplifications.

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