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Question 1Which of the following is a quadratic equation?(a) x2+2x+1=(4–x)2+3(b) −2x2=(5−x)(2x−25)(c) (k+1)x2+32 x=7, where k =−1(d) x3−x2=(x−1)3

Answer»

Question 1

Which of the following is a quadratic equation?

(a) x2+2x+1=(4–x)2+3

(b) −2x2=(5−x)(2x−25)

(c) (k+1)x2+32 x=7, where k =−1

(d) x3−x2=(x−1)3


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