Which are the solutions of the quadratic equation $x^2=7x+4$ ?

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Answer 1 · 2018-07-08T06:29:02

$x = 7/2 +- sqrt(65)/2$

Given: $x^2 = 7x + 4$

Put the equation in $Ax^2 + Bx + C = 0$ form.

$x^2 - 7x - 4 = 0$

Use the quadratic formula to solve:

$x = (-B +- sqrt(B^2 - 4AC))/(2A)$

$x = (7 +- sqrt(49 - 4(1)(-4)))/2$

$x = 7/2 +- sqrt(65)/2$

Which are the solutions of the quadratic equation x^2=7x+4x^2=7x+4?