Ok here is the problem
x^3 + 1 / x^3 - x^2 + x times 10x / -40x - 40
/ denotes fractions and please explain how you got answer, appreciate guys.
x^3 + 1 / x^3 - x^2 + x times 10x / -40x - 40
/ denotes fractions and please explain how you got answer, appreciate guys.
-
Brackets are helpful, but since you didn't use them, I'll guess that this is the problem:
(x^3+1)/(x^3-x^2+x) * (10x)/(-40x-40) ? If this isn't right, please re-post with use of brackets....
Multiply simply by multiplying across
((x^3+1)*(10x))/((x^3-x^2+x)*(-40x-40))
(10x^4 + 10x)/(-40x^4 + 40x^3 - 40x^2 - 40x^3 + 40x^2 -40x)
Collect like terms
(10x^4 + 10x)/(-40x^4 - 40x)
Factor top and bottom
10x(x^3 + 1)/ (-40x(x^3 + 1))
Now you can cancel out the (x^3+1)'s
10x/-40x
The x's cancel out
-10/40
Reduce
-1/4
(x^3+1)/(x^3-x^2+x) * (10x)/(-40x-40) ? If this isn't right, please re-post with use of brackets....
Multiply simply by multiplying across
((x^3+1)*(10x))/((x^3-x^2+x)*(-40x-40))
(10x^4 + 10x)/(-40x^4 + 40x^3 - 40x^2 - 40x^3 + 40x^2 -40x)
Collect like terms
(10x^4 + 10x)/(-40x^4 - 40x)
Factor top and bottom
10x(x^3 + 1)/ (-40x(x^3 + 1))
Now you can cancel out the (x^3+1)'s
10x/-40x
The x's cancel out
-10/40
Reduce
-1/4