Question

evaluate using identity 10.5×9.5

Answer 1

10.5*9.5
=99.75
that is ur correct answer dear

Answer 2

your answer is -
(10+0.5)(10-0.5)
Identity:a^2-b^2=(a+b)(a-b)
=(10)^2-(0.5)^2
=100-0.25
=99.75
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