AP EAMCET · Maths · Quadratic Equation
If the bi-quadratic equation has as one of its roots, then which of the following is not a root of
- A
- B
- C
- D
Answer & Solution
Correct Answer
(A)
Step-by-step Solution
Detailed explanation
Given, f(x)=x4+2x3-16x2-22x+7=0 ∵ 2+3 is one of the roots of fx=0 ∴ 2-3 is also one of the roots of fx=0 Let us assume the other two roots of the fx=0 are α, β ⇒ Sum of roots=-2 ⇒α+β+2+3+2-3=-2…
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