(13+x)(13-x) what is the answer?
shashabkdubey:
169-x2
Answers
Answered by
11
Given, (13-x)(13+x)
We know that,
(a+b)(a-b)= a^2-b^2
Therefore,
(13-x)(13+x)= 13^2-x^2
= 169- x^2
Answered by
8
= 169 - 13x + 13x - x^2
= 169 - x^2....…
= 169 - x^2....…
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