Question

PLS ANSWER THIS FAST......I WILL MARK IT AS BRAINLIEST!!!
Mrs sonia asked her students reshma and kamla to find the cube of 97 without multiplying.In the first attempt their answer was wrong. they tried again and in the second attempt they calculated the correct value.how did they calculate the value?which mathematical concept was used?what value does it depict?

Answer 1

by using the formula written above u can solve it

Answer 2

the calculated it usling a formula (a-b)^3....
they values depicted are trying again amd again, listening to the teacher.....
polynomials identity number 2 was used