X^2-81
Factor the quadratic completely
2 answers:
Answer:
(x+9)(x-9)
Step-by-step explanation:
whenever its is x^2
you can start off with
(x+_)(x+_)
then your figure out "what times what" is -81 (they have to be the same number!)
Its -9 and 9
and so you plug that in to get
(x+9)(x-9)
Answer:
x
^2
−
9^
2. hope this helps
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