1.

Decide which of the following are quadratic equations.(1) x2 + 5x – 2 = 0(2) y2 = 5y – 10(3) y2+1y=2(4) x+1x=-2(5) (m + 2) (m – 5) = 0(6) m3 + 3m2 – 2 = 3m3

Answer» Decide which of the following are quadratic equations.

(1) x2 + 5x – 2 = 0

(2) y2 = 5y – 10

(3) y2+1y=2

(4) x+1x=-2

(5) (m + 2) (m – 5) = 0

(6) m3 + 3m2 – 2 = 3m3


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