Question

PLS HELP WILL MARK YOU BRAINLIEST!!!

Answer 1

Answer:

The answer is B

Step-by-step explanation:

3x - 2x^2 + 3 -(-5x^2 + 3x + 5)

3x - 2x^2 + 3 + 5x^2 - 3x - 5

= 3x^2 - 2

Answer 2

$\\ \sf\longmapsto (3x-2x^2+3)-(-5x^2+3x+5)$

$\\ \sf\longmapsto 3x-2x^2+3+5x^2-3x-5$

$\\ \sf\longmapsto 5x^2-2x^2+3x-3x+3-5$

$\\ \sf\longmapsto 3x^2-2$