Question

a-b=4 a^2-b^2=36 a+b=?

Answer 1

Given that,

a² - b² = 36

And a + b = 4

We know that

a² - b² = (a + b)(a - b)

So by applying this identity in first case we get,

a² - b² = 36

=> (a - b)(a + b) = 36

Now we are given that a + b = 4

=> (a - b)4 = 36

=> (a - b) = 36/4

=> (a - b) = 9

Now we have to find (a - b)²

So substituting the value of a - b we get

(a - b)²

=> (9)²

= 81

So your answer is 81

Hope it helps dear friend ☺️

Answer 2

Answer:

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