Question

if √ab=a+b
then find the value of (a-b)^2​

Answer 1

Answer:

a² + b² - 2ab

but for this I need to think I will tell u later

Answer 2

Answer:

-3ab

Step-by-step explanation:

(√ab) = (a + b)

=> (√ab)^2 = (a + b)^2. {squaring both sides}

=> ab = a^2 + b^2 + 2ab

=> ab - 4ab = a^2 + b^2 + 2ab - 4ab

=> -3ab = a^2 + b^2 - 2ab

=> -3ab = (a-b)^2

I tried to get the answer as -3ab. It is logically correct. But i m not so sure that this is the answer given in your textbook. So, please check once and let me know. Uf any query then feel free to ask