Math, asked by swati05050, 5 months ago

if x^2+x=3 then find value of x​

Answers

Answered by MAMohamedAli
0

Answer:

x = (-1)                        or              x = 2

Step-by-step explanation:

x² + x = 3

x² + x -3 = 0

x² + x -2 = 1

x² + 2x -x -2 = 1

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

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

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

x = 1 -2                       or              x = 1 +1

x = (-1)                       or             x = 2

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