Question

X+4 is prime. X2-9can be factored using the __formula

Answer 1

Answer: difference-of-squares

next one is (x+3)(x-3)(x+4)

Explanation:

just took it on ed genuity :)

Answer 2

`\purple \bold{a^2 - b^2}`

Explanation:

X+4 is prime. X2-9can be factored using the
`\purple \bold{a^2 - b^2}` formula

`x^2 - 9\\</p><p>=x^2 - 3^2 \\</p><p>= (x+3)(x-3)`