Question

simplify
a2+5a+6/a2-a-12 × a-4/a2-4 p
please urgent paper hai!​

Answer 1

Answer:

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Step-by-step explanation:

⇒

a

2

−a−12

a

2

+5a+6

×

a

2

−4

a−4

=

a

2

−4a+3a−12

a

2

+3a+2a+6

×

(a+2)(a−2)

a−4

=

a(a−4)+3(a−3)

a(a+3)+2(a+3)

×

(a+2)(a−2)

(a−4)

=

(a−4)(a+3)

(a+3)(a+2)

×

(a+2)(a−2)

(a−4)

=

a−2

1

.