Question

find the sum or difference.
write your answer in
standard form.
$(2x + 3x^{2}) - (7 - 8x^{2})$

Explanation:

Step1: Distribute the negative sign

$(2x + 3x^2) - 7 + 8x^2$

Step2: Group like terms

$3x^2 + 8x^2 + 2x - 7$

Step3: Combine like terms

$11x^2 + 2x - 7$

Answer:

$11x^2 + 2x - 7$