Question

equation.

Answer 1

my mama always told me, "If you're old enough to use OpenStudy, then you're old enough to use WolframAlpha"

http://www.wolframalpha.com/input/?i=%28x%2B8%29+%28x-9%29+%28x-10%29+%28x+%2B+11%29

Answer 2

for the start,u can simplify 1st two terms and last two terms like this:
(a+b)(c+d)=ac+ad+bc+bd

Answer 3

okay
(x^2 - 1 -72) (x^2 + 1 - 110)

x^4 - 183x^2 + 38x + 7920?

Answer 4

according t the link i gave..that's right

Answer 5

where did -1 come from?shouldn't it be -x ??

Answer 6

same for +1,it should be +x

Answer 7

(x^2 - 1x -72) (x^2 + 1x - 110)

Answer 8

right,now take just one term say x^2 from 1st bracket,and multiply it by every term of 2nd bracket.......after u do that,take 2nd term which is -1x,and multiply it by every term of 2nd bracket,then same for -72......then add all the terms and combine like terms,u will get your answer....

Answer 9

final answer = x^4 - 183x^2 + 38x + 7920 = 0

Answer 10

do not write =0, a polynomial is asked,not an equation.....