# algebra 1

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Can someone solve theses for me?

Factor the polynomial x2 + 7x + 12 completely

Factor the polynomial x2 – 4 completely

Factor the polynomial 18a2b – 4ab + 10a completely

x2 + 7x + 12 = (x+4)(x+3)
x2 – 4 = (x+2)(x-2)
18a2b – 4ab + 10a = 2a(9ab - 2b + 5)

• algebra 1 -

Factor the following polynomial completely.

-x2y2 + x4 + 9y2 - 9x2

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