Which of the following is a quadratic equation ?
(A) (x-2) +1=2x-3
(B) x(x+1)+8=(x+2)(x-2)
(C) (x-2)(x+1)=(x-1)(x+3)
(C) None of these
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Answer:
option C is correct
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Answer : option C is the correct option
Explanation : algebra, a quadratic equation is any equation that can be rearranged in standard form as ax^{2}+bx+c=0 where x represents an unknown, and a, b, and c represent known numbers, where a ≠ 0. If a = 0, then the equation is linear, not quadratic, as there is no ax^2 term.
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