Question

Qual o result a do das expressões:

a) (a³-5)²
b) (7x-1)(7x+1)
c) 2.(x-3)²
d) 5x-10/15
e) 2xy³/10xy²

Answer 1

a) (a³ - 5)² = a^6 - 25
b) (7x-1)*(7x+1) = 49x² + 1
c) 2*(x - 3)² = 2x² + 18
d) 5x – 10 / 15 = 5x – 2/3
e) 2xy³ / 10xy² = 1y/5

Answer 2

a)a^6-10a^3+25
b)49x^2-1
c)x^2-6x+9
d)x-2/3
e)xy/5 ou 1xy/5
Espero q tenha ajudado .