Question

Find the zeros. Write the smaller solution first, and the larger solution second. f(x) = 8x^2 - 800

Answer 1

x = ± 10

Explanation:

Given

f(x) = 8x² - 800

To find the zeros let f(x) = 0, that is

8x² - 800 = 0 ( add 800 to both sides )

8x² = 800 ( divide both sides by 8 )

x² = 100 ( take the square root of both sides )

x = ±
`√(100)` = ± 10

Thus

smaller solution is x = - 10

larger solution is x = 10