Question

If A = 2x - 7x2 + 3 and B = 4x2 – 12x, what is A + B? 2. 6x2 - 7x - 9 0-302 + 10x + 3 3x2 - 10x + 3 w 0 -3.2 – 10x + 3

Answer 1

Explanation

Given that

$\begin{gathered} A=2x-7x^2+3 \\ B=4x^2-12x \end{gathered}$

We can find A+B by finding the sum of the like terms in the expressions

$\begin{gathered} A+B=2x-7x^2+3+4x^2-12x \\ A+B=2x-12x-7x^2+4x^2+3 \\ A+B=-3x^2-10x+3 \end{gathered}$

Answer:

$-3x^2-10x+3$