Question

If a-b=4, ab=45, then find (a+b)^2

Answer 1

Answer is 96...
FORMULA
${(a + b)}^{2} = {(a - b)}^{2} + 4ab$
SOLUTION
So Substituting the values...
(a+b)²= 4² + 2(45)
=16+90
=96
I HOPE IT HELPS YOU...!!!