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elena55 [62]
4 years ago
10

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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