What is the result of -3x2 -5x plus 1 and 8x2-2x-9?

Answer 1

Are you asking how to solve for x if those two expressions equal each other?

-3x2 - 5x + 1 = 8x2 - 2x - 9

11x2 + 3x - 10 = 0

11x2 + 3x = 10

x2 + 3x/11 = 10/11

x2 + 3x/11 + (3/22)2 = 10/11 + (3/22)2

(x + 3/22)2 = 440/484 + 9/484

x + 3/22 = ± √(449 / 484)

x = 3/22 ± √449 / 22

x = (3 ± √449) / 22

Are you asking to find the derivatives of each expression?

if f(x) = -3x2 - 5x + 1

f'(x) = -6x - 5

if f(x) = 8x2 - 2x - 9

f'(x) = 16x - 2

Are you looking for their indefinite integrals?

∫(-3x2 - 5x + 1)dx = -x3 - 5x2/2 + x + C

∫(8x2 - 2x - 9)dx = 8x3/3 - x2 - 9x + C