4 years ago

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

Mathematics

1 answer:

lapo4ka [179]4 years ago

5 0

(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.

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