Question

(a raised to the power 2 + b raised to the power 2 + 2ab) = 4 and value of b=2, then find a. Please answer this ​

Answer 1

Step-by-step explanation:

as a²+b²+2ab= (a+b)²

so √(a²+b²+2ab) = 4

√(a+b)² = 4

a+b=4 equation 1

putting the value of b in equation 1

a+2=4

a=2