Question

What least number must be added to both the sides of the equation 4x^2+12x+7=0 to solve it by the method of completing the squares?

Answer 1

Answer:

2

Step-by-step explanation:

4x2−12x+7

=(2x)2−2∗2x∗3+7

(a+b)2=a2+2∗a∗b+b2

Here , a=2x,b=−3

=(2x)2+2∗2x∗(−3)+32

=4x2−12x+9

=> We have to add 2 to make perfect square

Answer 2

Please mark as brain list.....