3 years ago

X^2+x-2/1-x^2 ÷ 2x^2-6x-20/x^2-4x-5

1 answer:

7 0

<span>X^2+x-2/1-x^2 ÷ 2x^2-6x-20/x^2-4x-5

(x + 2)(x - 1) (x - 5)(x + 1)
= ------------------- * ---------------------
(1 + x)(1- x) 2(x + 2)(x - 5)

</span> (x - 1)
= ----------
2(1- x)

- (1 - x)
= -------------
2(1 - x)

= -1/2

answer
-1/2

You might be interested in

Rafael took 4 pumpkin pie to a family gathering. If he divides each pie into six equal sizes slices how many slices can he serve

11Alexandr11 [23.1K]

The answer is: 24
6 slices each pie and there is 4 pies so multiply 6 by 4 and u get 24

8 0

2 years ago

What is the midpoint of a segment with endpoints at (−4, −8) and (8, 10)? A.(−6, −9) B.(−6, 1) C.(2, −9) D.(2, 1)

spayn [35]

$\text{The formula of the midpoint of segment AB:}\\\\\left(\dfrac{x_A+x_B}{2};\ \dfrac{y_A+y_B}{2}\right).\\\\\text{We have the points}\ A(-4,\ -8)\ \text{and}\ B(8,\ 10).\ \text{Substitute:}\\\\x=\dfrac{-4+8}{2}=\dfrac{4}{2}=2\\\\y=\dfrac{-8+10}{2}=\dfrac{2}{2}=1\\\\Answer:\ \boxed{D.\ (2,\ 1)}$