Question

va rog ajutați-mă. dau 22 puncte​

Answer 1

Răspuns:"^" este ridicarea la putere

a) 0,5*(-4x^2) =-2x^2

b)-8ax*(-7b^2x)=56ab^2x^2

c) -12xy*(-3/4x)=3xy*3x =9x^2y

d) -12a*(-0,4b)*(-5cx)=24ab^2c

e) (-10)*(-3/2xy^2)*(-2z2)=10x*3xy^2z^2=-30*^2y^2

f)(-3/8x.2/6y)*(-6z)=(-1/8xy)*(-6z)=1/4xy*3z=3/4xyz

g)(-5/16x*3/10y)*(-10^2/3x2y)=1-1/16x*3/2y)*(-32/3*^2y)=(-3/32xy)*(-32/3*^2y)=xyx^2=x3 y2