What are the solutions to the equation 4x^2-11x-20=0 ?

The solutions to the equation 4x^2-11x-20=0 are x=4,x=-5/4

Find the zeros of 4x^2-11x-20=0

The zeros of 4x^2-11x-20=0 are x=4,x=-5/4

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4 x^{2} - 11 x - 20 = 0

x = 4, x = - \frac{5}{4}

Decimal Notation

x = 4, x = - 1.25

Solution steps

4 x^{2} - 11 x - 20 = 0

Solve with the quadratic formula

x_{1, 2} = \frac{- ( - 11 ) \pm ( - 11 ) ^{2} - 4 \cdot 4 ( - 20 )}{2 \cdot 4}

(- 11)^{2} - 4 \cdot 4 (- 20) = 21

x_{1, 2} = \frac{- ( - 11 ) \pm 21}{2 \cdot 4}

Separate the solutions

x_{1} = \frac{- ( - 11 ) + 21}{2 \cdot 4}, x_{2} = \frac{- ( - 11 ) - 21}{2 \cdot 4}

x = \frac{- ( - 11 ) + 21}{2 \cdot 4} : 4

x = \frac{- ( - 11 ) - 21}{2 \cdot 4} : - \frac{5}{4}

The solutions to the quadratic equation are:

x = 4, x = - \frac{5}{4}

x^{2} h + 3 x h^{2} + h^{3}

- \frac{3}{7} x y (- 35 x^{3} y^{2})

- 65 y + 19 < - 2 y + 41 - 65 y + 19 < - 2 y + 41

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What are the solutions to the equation 4x^2-11x-20=0 ?
The solutions to the equation 4x^2-11x-20=0 are x=4,x=-5/4
Find the zeros of 4x^2-11x-20=0
The zeros of 4x^2-11x-20=0 are x=4,x=-5/4