Question

x²+4x-50=0 solve the quadratic equation
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Answer 1

Answer:

in this the discriminant is not a perfect square

so, x=[-4±√216]/2

Step-by-step explanation:

Answer 2

Answer:

x^2 + 4x - 50 = 0

We cannot solve it by factorisation method

We cannot solve it by factorisation methodSo, by formula method...

Here , a = 1 , b = 4 , c = -5 =b^2 - 4ac = 4^2 - 4 × 1 × (-50) = 16 - (-200) = 16 + 200

b^2 - 4ac = 4^2 - 4 × 1 × (-50) = 16 - (-200) = 16 + 200 =

216

We know that,

We know that,

x = - b +/- √b^2 - 4ac/2a = - 4 +/- √216 / 2 × 1

= - 4 +/- 12√3 /2

= -2 ( 2 +/- 6√3 )/2

= 2 gets cancelled

= 2+/- 6√3

therefore, x = 2 + 6√3 or 2 - 6√3

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