@Victorbatista0

Victorbatista0

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(10+3)²................
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Me ajude a calcular essas coisas. Pra mim é tudo macumba.a) (10+3)²b) (2+)²c) (x+11)²d) (5a+b)²e) (10-7)²f) (9-x)²g) (a-6b)²h) (2a-b)²i) (2+5b)·(2-5b)j) (4+b)·(4-b)
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