Question

using identity of algebra find 107*103

Answer 1

here is your answer

Answer 2

As
${a}^{2} - {b}^{2} = (a +b )( a- b)$
so, we can write,
107=105+2 and
103=105-2

now, (105-2)(105+2)=
${105}^{2} - {2}^{2} = 11025 - 4 = 11021$
hence, 11021 is the required answer.
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