Question

d) 3(x – 2 y) - (2x – 5y) ; si: x= - 4 , y = 5

e) (6x –y) – 2(3x – 5y) ; si: x = - 2 , y = 3
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Answer 1

Explicación paso a paso:

D). x=-4 y=5

3(x-2y) - (2x-5y)

3(-4-2(5)) - (2(-4)-5(5))

3(-4-10) - (-8-25)

3(-14) + 33

-42+33

=R// -9

E). x=-2 y=3

(6x-y) - 2(3x-5y)

(6(-2)-(3)) - 2(3(-2)-5(3))

(-12-3) - 2(-6-15)

-15 - 2(-21)

-15+42

=R// 27