Solve with Quadratic Formula

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Quadratic Functiions

Rules/Formula
x = -b+-√b2-4ac
2a
Example
Solve x2-5x = 4


x2-5x - 4 = 0 Write In Standaard Form

x = -(-5)+-√(-5)2-4(1)(-4)
2(1)

x = 5+√41
2 Simplify

The Solutions are x = 5+√41
2 = 5.70

and x = 5-√41
2 = - 0.70