Evaluate using algebraic identities.1.05×9.5
Answers
Answered by
2
it is not 1.05 it is 10.5
10.5×9.5
=(10+0.5)(10-0.5)
=(10)^2-(0.5)^2 since a^2-b^2=(a+b)(a-b)
=100-0.25
=99.75
10.5×9.5
=(10+0.5)(10-0.5)
=(10)^2-(0.5)^2 since a^2-b^2=(a+b)(a-b)
=100-0.25
=99.75
Similar questions