Question

Subtract (3x +6) from the sum of (7x² + 8x+4) and (8x? + 9x - 2) The answer is (Simplify your answer. Do not factor.)

Answer 1

We can write this expression as:

$\begin{gathered} \lbrack(7x^2+8x+4)+(8x^2+9x-2)\rbrack-(3x+6) \\ (15x^2+17x+2)-(3x+6) \\ 15x^2+17x-3x+2-6 \\ 15x^2+14x-4 \end{gathered}$

Answer: 15x^2 + 14x - 4