Factor the polynomial. 81r^{2}-16t^{2}.

John Stewart 2021-12-18 Answered
Factor the polynomial. 81r216t2.
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Expert Answer

Ronnie Schechter
Answered 2021-12-19 Author has 27 answers
Step 1
we have to factor the given polynomial.
81r216t2.
Step 2
81r216t2.
(9r)2(4t)2 now we will use the identity (a2b2)=(ab)(a+b)
(9r+4t)(9r-4t)
therefore
81r216t2=(9r+4t)(9r4t)

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Mary Nicholson
Answered 2021-12-20 Author has 38 answers

Given,
81r216t2
On simplification, we get

81r216t2=99rr44tt
=92r242t2
=(9r)2(4t)2
=(9r4t)(9r+4t)   [a2b2=(ab)(a+b)]

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