2. Evaluate using suitable identities:
(1) 53 x 55 )
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53×55= (50+3) (50+5)
by identity (x+a)(x+b)=x²+(a+b)x+ ab
50²+(3+5)50+3×5
2500+400+15
=2915
It should help you
by identity (x+a)(x+b)=x²+(a+b)x+ ab
50²+(3+5)50+3×5
2500+400+15
=2915
It should help you
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