AP EAMCET · Maths · Quadratic Equation
Which of the following is not a root of
- A
- B
- C
- D
Answer & Solution
Correct Answer
(B)
Step-by-step Solution
Detailed explanation
The following is not a root of x3-11x2+36x-36=0 ⇒x3-2x2-9x2+18x+18x-36=0 ⇒x2(x-2)-9x(x-2)+18(x-2)=0 ⇒(x-2)(x2-9x+18)=0 ⇒x=2, x=9±81-722 ⇒x=2, x=9±32 ⇒x=2, x=6,3 ⇒x=2,3,6 are roots…
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