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B
No
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C
Ambiguous
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D
Data insufficient
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Solution
The correct option is A Yes Given equation is (x+2)3=x3−4 →x3+23+3×x×2(x+2)=x3−4 ⇒x3+8+6x(x+2)=x3−4 ⇒x3+8+6x2+12x−x3+4=0 ⇒6x2+12x+12=0 Comparing it with the standard form of quadratic equation x2+bx+c=0,a≠0. Here, a=6 Thus, it is a quadratic equation.