Question

the product of three intergers is 90. the second number is twice the first number. the third number is two more then the first number. what are the three numbers

Answer 1

1st number: n
2nd number: 2n
3rd number: 2+n
Product: 90

Answer 2

ok

Answer 3

i know this part but not how to slove

Answer 4

Ohh, ok. SO, foil (n)(2n)(2+n).

Answer 5

what do i do after 2x^3+4x^2-90=0

Answer 6

I would divide by 2 just to simplify a bit.

Answer 7

can u show me how