2 years ago

Factor the trinomial completely. a^4 -2a^2 - 35

Mathematics

1 answer:

valentina_108 [34]2 years ago

8 0

Answer:

(a^2+5)(a^2-7)

Step-by-step explanation:

a^4 -2a^2 - 35=
a^4-2a^2+1-36=
(a^2-1)^2-6^2=
(a^2-1+6)(a^2-1-6)=
(a^2+5)(a^2-7)

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