Question

4) Sabendo que A = 5x + 6Y-27: B=-3x - 2y + 4z e C = 4Y - 62. Calcule
a) A +C
b) B-C
c) A+ B + C
d) 2B + A
​por favor mim ajuda

Answer 1

Explicação passo-a-passo:

a) 5x +6y -27 + 4y -62=

5x +10y - 89

b) - 3x -2y +4z - (4y - 62)=

-3x -2y +4z -4y +62=

-3x -6y +4z +62

c) 5x+6y-27 +(-3x-2y +4z) + 4y -62=

5x +6y -27 -3x -2y +4z +4y -62=

5x -3x +6y +4y -2y +4z -27 -62=

2x + 10y -2y +4z - 89=

2x +8y +4z -89

d) 2 .( -3x -2y +4z) + 5x +6y -27=

- 6x -4y +8z +5x +6y -27=

- 6x +5x -4y +6y +8z -27=

- 1 x +2y +8z -27=

-x +2y +8z -27