Question

A = 7 x 2 – 2 x + 8, B = 7 x 2 – x + 5 e C = - 9 x - 2 , calcule o valor de: A + B - C

Answer 1

Resposta:

Olá!

A + B - C = 6x

Explicação passo-a-passo:

A = 7x 2 - 2x :

7x + 2x - 2

7x

B = 7x 2 - 1x + 5 :

7x + 1x - 2

6x

C = - 9x - 2 :

7x

A + B - C

A = 7x ; B = 6x ; C = 7x

7x + 6x - 7x

13x - 7x

6x

Bons Estudos!