Como calcular ? a) (18x³y²):(3xy²) = , b) (-a²).a= , c) (-9x²y).(-2xy²) = d) (x-y)²-x(x-2y) , e) (x-2)²+a(3a+2) , f) (m+1(m=1)+(m+1)²-2m
alguem me responde por favoor preciso hj valendo mt ponto quem souber ai me ajudem ! :( ♥
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