Question

4. v(a + b + 2ab)
= 4 and value of b=2, then find a.​

Answer 1

Step-by-step explanation:

putting the value of b in eqn

(a+2+2×a×2) = 4

(a+2+4a) = 4

(5a+2) = 4

5a = 2

a= 2÷5

=0.4

Answer 2

Answer:0.4

Step-by-step explanation:

by putting the value of b in eqn, we get,

=> (a + 2 + 2×a×2) = 4

=> (a + 2 + 4a) = 4

=> (5a + 2) = 4

=> 5a = 4 - 2

=> 5a = 2

=> a = 2/5

=> a = 0.4

Hope this is useful :)