Question

1.Evaluate using suitable identity:
(65)^2−(20)^2 / 85 answer fast plsss its urgent

Answer 1

Answer:

The answer is 45

Step-by-step explanation:

Using the identity $\boxed{a^2-b^2=(a+b)(a-b)}$

We have

  $\dfrac{65^2-20^2}{85}=\dfrac{(65+20)(65-20)}{85}$

                  $=\dfrac{85\times 45}{85}=45$

Cancel 85 from numerator and denominator

Answer 2

Answer:

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