Question

Fatore as expressões corretamente..
a) 15x^7-3ax²
b) x^7+x^8+x^9
c) 6x³- 10x²+4x^4*
d) 8x°-12x³

Answer 1

a)
$15x^7-3ax^2=3x^2(5x^5-a)$

b)
$x^7+x^8+x^9=x^7(1+x+ x^{2} )$

c)
$6x^3-10 x^{2} +4x^4=2x^2(3x-5+2 x^{2} )$

d)
$8x^0-12x^3=8.1-12x^3=8-12x^3=4(2-3x^3)$