Question

find roots of the quadratic equation x2 - 4x + 2 = 0 using quadratic formula​

Answer 1

Answer:

We know that quadratic equation = b^2 - 4ac

Step-by-step explanation:

Here , a = 1 , b = 4 , c = 2

Therefore , b^2 - 4ac

(4)^2 - 4×1×2

16 - 8

8

Now , -b ± √b^2 - 4ac/2a

-4 ± √8/2×1

-4 ± √8/2

Taking positive sign

-4 + √8/2

Taking negative sign

-4 - √8/2

Therefore the required roots will be x = -4 + √8/2

x = -4 -√8/2

Answer 2

Answer:

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