Question

Calcule

A)2x.5x

B)4y.3y²

C)-2x.7x

D)y.(-5y)

Answer 1

$2x.5x = 10x^{2} \\ \\ 4y.3y^{2} = 12y^{3} \\ \\ - 2x.7x = - 14x^{2} \\ \\ y.(-5y) = - 5y^{2}$

Answer 2

a)10x^2
b)12y^3
c9x^2
d)-5y^2

#espero ter ajudado !!