Question

sendo a=5x+3x-14eb=2x+5x+11, determine
a-b b-a 2.(a+b)

Answer 1

Explicação passo-a-passo:

A--B=(5x+3x-14)--(2x+5x+11)

A--B= 5x+3x-14---2x-5x-11

A--B = 8x-7x-14-11

A-B=x-25

B--A=(2x+5x+11)--(5x+3x-14)

B--A=7x+11-8x+14

B--A=7x-8x+11+14

B-A=-x+25

2*(A+B)=

A+B=(5x+3x-14) + (2x+5x+11)

A+B= 8x-14+7x+11

A+B=8x+7x-14+11

A+B=15x-3

2*(A+B)=2*(15x-3)

2*(A+B)=30x-6

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