Question

Simplify fully
x2 - 25/2x2-7x-15

Answer 1

x + 5

------------

2x + 3

Explanation:

x² - 25

-----------------

2x² - 7x - 15

(x + 5)(x - 5)

-----------------

2x² - 7x - 15

------------------------

2 × -15 = -30

-10 + 3 = 7

(2x² - 10x)(3x - 15)

2x( x - 5) +3 (x - 5)

-------------------------

(x + 5)(x - 5)

-----------------

(2x + 3)(x - 5)

Cancel out (x - 5)

x + 5

------------

2x + 3

I hope this helps!