Solve the quadratic equation - X square + 7 x minus 10 is equal to zer

1.	Solve the quadratic equation - X square + 7 x minus 10 is equal to zero by completing the square method
Answer» $x { }^{2} + 7x - 10 = 0$ $x {}^{2} + 2x + 5x - 10 = 0 \\ x(x + 2) - 5(x + 2) = 0 \\ (x - 5)(x + 2) = 0 \\ (x - 5) = 0 \: \: and \: \: (x + 2) = 0 \\ x = 5 \: \: and \: x = - 2$

Solve the quadratic equation - X square + 7 x minus 10 is equal to zero by completing the square method

Answer»

$x { }^{2} + 7x - 10 = 0$

$x {}^{2} + 2x + 5x - 10 = 0 \\ x(x + 2) - 5(x + 2) = 0 \\ (x - 5)(x + 2) = 0 \\ (x - 5) = 0 \: \: and \: \: (x + 2) = 0 \\ x = 5 \: \: and \: x = - 2$

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Solve the quadratic equation - X square + 7 x minus 10 is equal to zero by completing the square method

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