Question

If one root of a quadratic equation ax²+bx+c is -b+√D/2a,then other root is....​

Answer 1

b-√D/2a

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Answer 2

Answer:

ax2 + bx + c = 0

Let the roots be α and 2α

Sum of roots = -b/a

⇒  α + 2α =   -b/a

⇒  3α = -b/a

⇒  α  = - b/3a     …..(i)

Product of root = c/a

⇒ 2α2 = c/a

Step-by-step explanation: