Question

Solve (32)² by using identity"​

Answer 1

${32}^{2} \\ \\ = {(30 + 2)}^{2} \\ \\ = ( {30)}^{2} + 2.30.2 + ( {2)}^{2} \\ \\ = 900 + 120 + 4 \\ \\ = 1024$

Answer 2

Step-by-step explanation:

let us use (a+b)² identity:

now we can also write 32=30+2

So,let a=30 and b=2

(a+b)²=a²+b²+2ab

(30+2)²=(30)²+(2)²+2(30x2)

=900+4+2(60)

=900+4+120

=1024 is the answer

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