Show all work. What are the zeros of the function?

f (x) = 2x^2 - 8x - 10

Question

Mathematics

Karlee Ferguson

17 December, 00:08

Show all work. What are the zeros of the function?

f (x) = 2x^2 - 8x - 10

+3

Answers (1)

Know the Answer?

Alan Wilson · Answer 1

(2x² - 8x - 10) : 2 = 0

x² - 4x - 5 = 0

x² + x - 5x - 5 = 0

x (x+1) - 5 (x+1) = 0

(x+1) (x-5) = 0

x+1 = 0 or x-5 = 0

x = - 1 or x = 5

S = {-1; 5}

Show all work. What are the zeros of the function?f (x) = 2x^2 - 8x - 10

Show all work. What are the zeros of the function?

f (x) = 2x^2 - 8x - 10