Question

evaluate using identity: 25×15​

Answer 1

Answer:

hyy mate here is your answer.....

given,

=25×15

=(20)²-(5²)

=(20+5)(20-5)

(using identity = (a+b)(a-b)=a²-b²)

=20(20-5)+5(20-5)

=20×15+5×15

=300+65

=365.....answer.....

thanks for asking.....

mark my answer brainliest plzzz...

Answer 2

Answer:

(20+5)(20-5)=20square-5square=400-25=375