find the root of the quadratic equation X square + 5 = -6 x by completing the square method
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x^2 + 5 = - 6x
x^2 + 5 + 6 x = 0
x^2 + 6x + 5 = 0
x^2 + ( 1 + 5 ) x + 5 = 0
x^2 + x + 5x + 5 = 0
x( x + 1 ) + 5( x + 1 ) = 0
( x + 5 ) ( x + 1 ) = 0
x = - 5, - 1.
x^2 + 5 + 6 x = 0
x^2 + 6x + 5 = 0
x^2 + ( 1 + 5 ) x + 5 = 0
x^2 + x + 5x + 5 = 0
x( x + 1 ) + 5( x + 1 ) = 0
( x + 5 ) ( x + 1 ) = 0
x = - 5, - 1.
Ahanthi1438:
By completing squaring method
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