Question

using identities evaluate the following 103 × 104


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Answer 1

Answer:

By using (x+a)(x+b)=x^2 + x(a+b) + ab ,104*103=(100+4)(100+3)=100^2 + 100(4+3) + (4*3)=10000+700+12=10712Therefore, the answer is 10712.

Answer 2

Answer:

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By using (x+a)(x+b)=x^2 + x(a+b) + ab

104*103=(100+4)(100+3)

=100^2 + 100(4+3) +(4x3)

=10000+700+12=10712

Therefore, the answer is 10712.