Question

21x^2+15x-6

Answer 1

is it 36x^3-6 ?

Answer 2

Start by factoring the GCF

Answer 3

And no it is not 36x^3-6

Answer 4

\(\Huge\color{blue}{ \sf 21x^2+15x-6}\)

\(\Huge\color{blue}{ \sf 7x^2(3)+5x(3)-2(3)}\)

\(\Huge\color{blue}{ \sf 3(7x^2+5x-2)}\)


to factor \(\color{blue}{ \sf 7x^2+5x-2}\)

\(\color{blue}{ \sf (7x-2)(x+1)}\)

so what would your final answer be?

Answer 5

(7x-2)(x+1) isnt right

Answer 6

Oh,. really? How come?

-2x+7x=5x the middle term
-2 * 1 = -2 (the last term
7x * x = 7x^2 (the first term)

Please show me my mistake

Answer 7

Did you put in just "(7x-2)(x+1)" without the 3 ?

Answer 8

729

Answer 9

I won't give the whole answer but I can tell you that it starts off 3(x-1)