Question

EXERCISES
1. Check whether the following are quadratic equations
(x + 1) = 2(x-3)​

Answer 1

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(I) (i) (x + 2)2 = 2(x - 3)

(i) (x + 2)2 = 2(x - 3)⇒ x2 + 2x + 1 = 2x - 6

(i) (x + 2)2 = 2(x - 3)⇒ x2 + 2x + 1 = 2x - 6⇒ x2 + 7 = 0

(i) (x + 2)2 = 2(x - 3)⇒ x2 + 2x + 1 = 2x - 6⇒ x2 + 7 = 0It is of the form ax2 + bx + c = 0.

(i) (x + 2)2 = 2(x - 3)⇒ x2 + 2x + 1 = 2x - 6⇒ x2 + 7 = 0It is of the form ax2 + bx + c = 0.Hence, the given equation is quadratic equation.

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