Question

Factor this expression completely
x^2 - 9

Answer 1

ax^2 + bx + c
bx is gone
meaning the values in
your factored equation are positive and negative.
(x+b)(x-b)
what values multiplied give you -9 and when added those values add up to 0?

Answer 2

x stands for a number, ^2 stands for multiplied 2 times.

Answer 3

@shamil98 @BellaNina865 Thank you

Answer 4

No problem