Question

AYUDA POR FAVOR :( :( :( :(
1. Simplificar las siguientes expresiones:
A. a^4b^4-2a^2b^2-99
_______________
a^4b^4-10a^2b^2-11

B. a^4-a^2-12
____________
(a^2+3) (a-2)

GRACIAS!!!

Answer 1

a) x=a^2b^2
(x^2 -2x -99)/(x^2 -10x -11)
(x-11)(x+9)/(x-11)(x+1)
x+9/x+1
R/ (a^2b^2 +9)/(a^2b^2 +1)

b) x=a^2
(x^2 -x -12)/(x+3)(a-2)
(x-4)(x+3)/(x+3)(a-2)
x-4/a-2
(a^2 -4)/(a-2)
(a+2)(a-2)/(a-2)
R/ a+2