Question

fatore completamente as expressoes:a) x3+14x2+49x
b) 3a2+18a+27
c) 5x2-5y2

Answer 1

Boa tarde Alessandra

a) x^3 + 14x^2 + 49x

x*(x^2 + 14x + 49) = x*(x + 7)^2

b)

3a^2 + 18a + 27 = 3*(a^2 + 6a + 9) = 3*(a + 3)^2 

c)

5x^2 - 5y^2 = 5*(x + y)*(x - y)