Question

QI) Find the roots of the quadratic equation 2x? +1-4 = 0 by method of
completing the squares​

Answer 1

Answer:

x=3/4

Step-by-step explanation:

divide the whole equation by the coeffeicient of x i.e.2

2x/2+1/2-4/2=0

we get, x + 1/2 -2=0

x+1/2=2

Now, Multiply both the sides by half except with x

x + 1/2×1/2=2×1/2

x + 1/4=1

x=1-1/4

x=4-1/4=3/4

x=3/4