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  • Using y=x2 solve the equation x2-4x+3=0

Using y=x2 solve the equation x2-4x+3=0

Answers (1)

Since y=2x , 

Therefore x= \frac{y}{2}

now,
2x - 4x + 3 = 0
2 (y/2) - 4 (y/2) + 3 = 0
y - 2y + 3 = 0
-y + 3  = 0
-y = -3
y = 3

Posted by

Satyajeet Kumar

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