Question

Please i need help! anything will help

Answer 1

a = 3 or -3

Explanation:

a^2 -8 = 1

a^2 = 1 + 8

a^2 = 9

a = -
`√(9)` or
`√(9)`

a = 3 or -3

Answer 2

Answer: a = 3, -3

Explanation:

Since we want to find what values of a, or x when substituted into the function, equal 1, we will set the function equal to 1 and solve for x.

Given:

f(x) = x² - 8

Set equal to 1:

1 = x² - 8

Subtract 1 from both sides of the equation:

x² - 9 = 0

Difference of squares factoring:

(x - 3)(x + 3) = 0

Answers:

x = 3, -3

So,

a = 3, -3