Question

20. Solve by using quadratic formula : x2-3x+1=0.​

Answer 1

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Answer 2

Step-by-step explanation:

Answer

Correct option is

B

Roots are −2 and 5.

The equation x

2

−3x−10=0 can be solved as

x

2

−5x+2x−10=0

⇒x(x−5)+2(x−5)=0

⇒(x+2)(x−5)=0

⇒x=−2 and x=5

Hence, option B is correct.