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OpenStudy (anonymous):
(-42x)(+2x) =
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OpenStudy (saifoo.khan):
im answering this for the 3rd time. lol.
OpenStudy (saifoo.khan):
-40x
OpenStudy (saifoo.khan):
\[\Huge -40x\]
OpenStudy (anonymous):
so first the sign - times + = - then x * x = x^22 then 42 * 2 *= 84 so all together -84x^2
OpenStudy (anonymous):
\[-84x^{2}\]
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