Question

porfavor ayudenme a factorizar estos ejercicios (polinomios)
a.-x³+x²-9x-9
b.-x(x²+x-9)-9

Answer 1

x³+x²-9x-9=

x²(x+1)-9(x+1)=

(x+1)(x²-9)=

(x+1)(x-1)(x+1)=

(x+1)²(x-1)
__________________________
x(x²+x-9)-9=

x³+x²-9x-9=

x²(x+1)-9(x+1)=

(x+1)(x²-9)=

(x+1)(x-1)(x+1)=

(x+1)²(x-1)


:D