Question

solve all maths question briefly ​

Answer 1

Answer:

the denominator will be 70

Step-by-step explanation:

(7root5)-(5root7)×(7root5)+(5root7)

a^2-b^2=(a+b)(a-b)

=(7root5)^2-(5root7)^2

=49×5-25×7

=245-175

=70

THE QUESTION IS NOT SEEING CLEARLY