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Which polynomial identity will prove that 49=(2+5)^2
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Which polynomial identity will prove that 49=(2+5)^2

User A Ghazal
by
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1 Answer

3 votes
(a+b)² = a²+2ab+b²

And for a = 2 and b = 5

(2+5)² = 2²+2(2)(5)+5²

(2+5)² = 4+20+25

(2+5)² = 49

Hope this helped.
User QVSJ
by
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