Answered

m2 - 2m -3
------------------
m2 -9

5x - 10
------------
2x -4

x4n + 2x2n - 15
------------------------
x4n - 8x2n + 15

Sagot :

m²-2m-3
—————
m²-9
(m-3)(m+1)
= ——————
(m-3)(m+3)
m+1
=———
m+3

5x-10
————
2x-4
5(x-2)
= ————
2(x-2)
= 5/2

x⁴n+2x²n-15
———————
x⁴n-8x²n+15
(x²n+5)(x²n-3)
= ————————
(x²n-5)(x²n-3)
x²n+5
= ————
x²n-5