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OpenStudy (anonymous):
I could use some help to factor this question. The area of a painting is given by the trinomial x²+4x-21. What are the possible demensions of the painting?
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OpenStudy (anonymous):
(x-3)(x-7) is that trinomial factored.
OpenStudy (anonymous):
(x+7)*
OpenStudy (anonymous):
THanks! Are you sure?
jhonyy9 (jhonyy9):
(x-3)(x+7)=x^2 -3x +7x -21 = x^2 +4x -21 so is right sure
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