Question

Simplify: x^2-36/x^2-12x+36

Answer 1

you need to factor the top and bottom and see if they will cancel
x^2 - 36 is difference of 2 squares can you factor this?
the rule is

a^2 - b^2 = (a + b)( a - b)

Answer 2

in this case a = x and b = 6

Answer 3

so what is x^2 - 36 = to?

Answer 4

i dont knnow

Answer 5

like (x-6)^2 ?

Answer 6

ok well you need to replace a by x and b by 6 in the formula for a^2 - b^2
a^2 - b^2 = (a + b)(a - b)
so x^2 - 36 = (x + 6)(x - 6)

Answer 7

ohh, okay

Answer 8

right
so how about factors of
x^2 - 12x + 36
- have you had experience of factoring expressions like this?

Answer 9

x+6/x-6

Answer 10

Snap - plz don't just give the answers - it against code of conduct

Answer 11

oh sorry

Answer 12

im terrible at factoring

Answer 13

ok - to factor this we need two numbers whose product is + 36 and when added give -12
-6 * -6 = 36 and -6 + (-6) = -12

so factors are (x - 6)(x - 6)

Answer 14

okay

Answer 15

right so we can simplify: