Question

1) Calcule: a) (+5x). (-4x2) = b) (-2x). (+3x) = c) (-x). (5yx). (2y3) = d) (-xy). (-xy). (-xy) = e) (-xm). (x²m): (3m) =​

Answer 1

São seguintes as respostas:

$a) -10x^{3}\\b)-6x^{2} \\c)-10x^{2}y^{4}\\d)-x^{3}y^{3} \\e) -\frac{mx^{3} }{3}$