Question

(3x +5)(9x^2 - 15x + 25) please assist

Answer 1

do you have to solve for x or just multiply?

Answer 2

open the brackets

Answer 3

just to express in standard form

Answer 4

use foil

Answer 5

3x*(9x^2-15x+25)
then 5*(9x^2-15x+25)

Answer 6

27x^3-45x^2+75x+45x^2-75x+125

Answer 7

combine like terms

Answer 8

is 27x^3 + 125

Answer 9

yupp

Answer 10

is it 27x^3 +125

Answer 11

thanks

Answer 12

np

Answer 13

just multiply them out:

9x^2 - 15x + 25
3x +5
----------------
45x^2 -75x +125
27x^3 -45x^2 +75x
------------------------
27x^3 0 0 + 125


27x^3 +125

Answer 14

great. thanks