Question

can x^3+7x^2+8x-16 be simplified any further?

Answer 1

no because there are no like terms

if you had x^3 and 7x^3, you can combine them to get x^3 + 7x^3 = 8x^3

Answer 2

can you do the thing (idk what its called) where you find a number that when added equals 8 but when multiplied equals -16?

Answer 3

that only works with quadratics

Answer 4

and you're thinking of factoring

Answer 5

ooh yeah that's right

Answer 6

thanks

Answer 7

you're welcome

Answer 8

do long division

Answer 9

where would I do that

Answer 10

@jim_thompson5910 can you check my answer? I had to multiply (x^2+3x-4)(x+4) and the final answer I got was x^3+7x^2+8x-16

Answer 11

let me check

Answer 12

I'm getting the same thing.

Answer 13

I thought it was right I was just making sure thanks again

Answer 14

i did long division
(x-1)(x^2+8x+16)=x^3+7x^2+8x+16

Answer 15

now you could simplify it more
x^2+8x+16=(x+4)(x+4)
the answer is (x+4)(x+4)(x-1)

Answer 16

i hope it is clear now