Question

x^2-x-20/x^2+8x+16
explain each step and provide the simplified form.

Answer 1

factor both the numerator and denominator.
can u do that?

Answer 2

yea. im stuck at the -x-20/8x+16

Answer 3

numerator:what re the two numbers when added give you -1 and when multiplied give you -20.

denominator:what are the two numbers when added together give you 8 and when multiplied give 16?

\[X^2-5X+4X-20/X^2+4X+4X+16\]

Answer 4

\[(X-5)(X+4)/(X+4)^2\]

Answer 5

CANCEL (X+4) FROM TOP AND BOTTOM ,YOU ARE left with \[(x-5)/(x+4)\]