Question

Write the equation with both x= 8 and x= -8 as solution

Answer 1

Answer:

X²-64 = 0

Step-by-step explanation:

$(x = 8)\: (x = - 8)= 0 \\= (x - 8 )\: \: (x + 8) \\ x ^{2} + 8x - 8x - 64 = 0 \\ x^{2} - 64 = 0 \\ mark \: brainliest$

Answer 2

Answer:

$y = x^2 - 64$

Step-by-step explanation:

Hello!

We can use the factored form of a Quadratic to find an equation with 8 and -8 as our solution.

Factored Form: $y = a(x - h)(x - k)$

The value in each parenthesis should be 0. So 8 and -8 can be flipped and used for h and k.

• $y = a(x - h)(x - k)$
• $y = a(x - 8)(x+ 8)$

This will give roots 8 and -8 for x.

• $y = 1(x - 8)(x + 8)$
• $y = x^2 - 64$

A possible equation is $y = x^2 - 64$.