Question

Es urgente porfa póngalo paso a paso

Answer 1

Explicación paso a paso:

A) 2x

2(-2)= -4

B) 7x-8

7(4)-8=28-8=20

C) (2x+3)^2

( 2(-1)+3)^2=(-2+3)^2=(1)^2=1

D) (2x+c) ^2

(2(-1)-2)^2= (-2-2)^2= (-4)^2=16

E) 3a-2b-c

3(-4)-2(-5)-1/2= -12+10-1/2= -2-1/2= - 5/2

F) (2a-b)/c

(2(2)-5)/3/4=(4-5)/3/4= -1/3/4= -4/3

G) 2x(m-n)

2(1/2)(3-(-8))=(3+8)=11

H) 5x-3/4

5(2/4)-3/4=10/4-3/4= 7/4

I) 6(a-b)

6(3-8)=6(-5)= -30

J) mn-mc

(3/4)(-2)-(3/4)(5)= -6/4 -15/4= -21/4