Question

Evaluate using suitable identities: (i) 7.52
pleas help me out. thankyou

Answer 1

Answer:

53×55=(50+3)(50+5) This is in the form.

(x+a)(x+b)=x

2

+(a+b)x+ab

Here x=50,a=3,b=5

(50+3)(50+5)=50

2

+(3+5)50+3×5

=2500+(8)50+15

=2500+400+15

∴53×55=2915

Step-by-step explanation:

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