Question

Is - 2, a root of the equation 2 - 3 x + 2 = 0 ?​

Answer 1

Answer:

substitute -2 in x

2- 3(-2) +2 = 2+6+2 = 10 and not 0.

therefore -2 is not a root of the given equation.

I hope this helped. Good luck!

Answer 2

Answer:

Important Notes:

– A quadratic equation is in the form ax2 +bx +c =0

– To find the nature of roots, first find determinant “D”

– D = b2 – 4ac

– If D > 0, equation has real and distinct roots

– If D < 0, equation has no real roots

– If D = 0, equation has 1 root

this is the formula now u solve by your own u will get it clearly

hope u will understand and get this sum's answer

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