Question

Efetue:

a) (2x+4y-5z+2)-(5x-y-z-1)
b) (3x²-2x+6)+(-x²-2x-5)
c) (¾x²+⅔x+⅕)-(¼x²-⅓x+⅗)
d) (3a²-2a-5)+(4a²+18a+8)
e)(4x³y²z-4x²y-5xy)
f) (5x²y+2xy²-xy+1)+(2x²y-6xy²-2+6)
g) (15wz²+10w²z-4wz+4w+z)-(5wz²+2w²z-3wz-2w-z)​

Answer 1

Eu vou responder a letra a também!

a) (2x+4y-5z+2)-(5x-y-z-1) = 2+x4y+5z+2-5x+y+z+1 = 3x+5x+6z+3.

Explicação passo-a-passo:

espero ter ajudado na letra a.