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OpenStudy (anonymous):
Simplify (4x3 + 3x2 − 7x) − (7x3 − 5x2).
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OpenStudy (anonymous):
-3 x^3+8 x^2-7 x
OpenStudy (aroub):
=4x^3+3x^2-7x-7x^3+5x^2 = -3x^3 +8x^2 -7x
OpenStudy (anonymous):
or: x ((8-3 x) x-7)
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