Question

simplify the expression 4x^2-12x/x^2+x-12

Answer 1

is 4x^2-12x all over x^2+x-12?
or is it -12x/x^2?

Answer 2

its 4x^2-12x all over x^2+x-12

Answer 3

tnx

Answer 4

\[\left( 4x^2-12x \right)\div \left( x^2+x-12 \right)\]

Answer 5

factor first.

Answer 6

\[4x\left( x-3 \right)\div \left( x-3 \right)\left( x+4 \right)\]

Answer 7

cancel out the (x-3)

Answer 8

4x(x-3) all over x^2+x-12?

Answer 9

\[4x \div(x+4)\]

Answer 10

oh i can factor that

Answer 11

THat's ur answer- can't do anymore from there.

Answer 12

so the neg on the top and the bottom can cencel eachother out"?

Answer 13

u talking bout the (x-3)?

Answer 14

yeah

Answer 15

yup. so long as the term's the same on the top and the bottom, they cancel. you knoe how 1/2=5/10, because you multiplied it by 5/5? That's pretty much the same logic- (x-3)/(x-3)=1

Answer 16

an when u multiply something by 1, nothing changes