Posted by **Alyssa** on Sunday, November 10, 2013 at 9:35pm.

So I am doing my algebra home work and I get stuck on these three problems.

x^2-19x+72 from there idk what to do because nothing multiplies up to 72 and adds up to -19.

Same for this one.

x^2-25x+48

And

x^2+9-90

(X+15) (x-6)

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