Question

best check whether the following is quadratic equation or not
(x+1)2 = 2(x-3)

Answer 1

Answer:

(i) (x + 1)2 = 2(x – 3)

(i) (x + 1)2 = 2(x – 3) We have:

(i) (x + 1)2 = 2(x – 3) We have: (x + 1)2 = 2 (x – 3) x2 + 2x + 1 = 2x – 6

(i) (x + 1)2 = 2(x – 3) We have: (x + 1)2 = 2 (x – 3) x2 + 2x + 1 = 2x – 6 ⇒ x2 + 2x + 1 – 2x + 6 = 0

(i) (x + 1)2 = 2(x – 3) We have: (x + 1)2 = 2 (x – 3) x2 + 2x + 1 = 2x – 6 ⇒ x2 + 2x + 1 – 2x + 6 = 0 ⇒ x2 + 70

(i) (x + 1)2 = 2(x – 3) We have: (x + 1)2 = 2 (x – 3) x2 + 2x + 1 = 2x – 6 ⇒ x2 + 2x + 1 – 2x + 6 = 0 ⇒ x2 + 70 Since x2 + 7 is a quadratic polynomial

(i) (x + 1)2 = 2(x – 3) We have: (x + 1)2 = 2 (x – 3) x2 + 2x + 1 = 2x – 6 ⇒ x2 + 2x + 1 – 2x + 6 = 0 ⇒ x2 + 70 Since x2 + 7 is a quadratic polynomial ∴ (x + 1)2 = 2(x – 3) is a quadratic equation.

Step-by-step explanation:

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Answer 2

Answer:

(x+1)2 = 2(x-3)

(2x)2 = 2x-3

4x = 2x-3

-3 = 4x+2x

-3 = 6x

x = -3/6

x = -2