Please Help Me! I will mark you as Brainliest!

a

Step-by-step explanation:

x^2 + x - 8 + x - 7

x^2 + 2x - 15

B

Step-by-step explanation:

u r welcome, mark as brainlest

(x-3)(x+5) = x² + 5x - 3x - 15 = x² + 2x - 15

Given:
Profit = Revenue - Cost

Revenue = 2x³ + 30x - 130
Cost = 2x³ - 3x - 520

Profit = (2x³ + 30x - 130) - (2x³ - 3x - 520)

Distributive property of multiplication:
-1(2x³) -1(-3x) -1(-520)

Profit = 2x³ + 30x - 130 - 2x³ + 3x + 520

combine like terms and simplify
Profit = 2x³ - 2x³ + 30x + 3x - 130 + 520
Profit = 33x + 390  Last option