Question

Simplify x squared minus 12 times x plus 20 all over x minus 10.

x − 2

x minus 2 all over x minus 10

x minus 2 all over 10

x minus 10 all over x minus 2

Answer 1

You want to rewrite it out first. \[\large \cfrac{(x^2-12)(x+20)}{(x-10)}\] Now use the foil or grouping method to solve the numerator

Answer 2

numerator: \(\large (x^2)(x)+(x^2)(20)-(12)(x)-(12)(20)\)

Can you simplify this for me?

Answer 3

is it\[(x ^{2}-12x+20)/(x-10)\]
@ahoward79

Answer 4

Ah, possibly.

Answer 5

if i am right...
you have to factor the numerator first..

Answer 6

Yep.\[\large \cfrac{(x^2-12x+20)}{x-10}\] What two numbers multiply to give you 20 and add to give you -12?