What are the solutions to the equation a^2-19*a+84=0 ?

The solutions to the equation a^2-19*a+84=0 are a=12,a=7

Find the zeros of a^2-19*a+84=0

The zeros of a^2-19*a+84=0 are a=12,a=7

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a^{2} - 19 \cdot a + 84 = 0

a = 12, a = 7

Solution steps

a^{2} - 19 a + 84 = 0

Solve with the quadratic formula

a_{1, 2} = \frac{- ( - 19 ) \pm ( - 19 ) ^{2} - 4 \cdot 1 \cdot 84}{2 \cdot 1}

(- 19)^{2} - 4 \cdot 1 \cdot 84 = 5

a_{1, 2} = \frac{- ( - 19 ) \pm 5}{2 \cdot 1}

Separate the solutions

a_{1} = \frac{- ( - 19 ) + 5}{2 \cdot 1}, a_{2} = \frac{- ( - 19 ) - 5}{2 \cdot 1}

a = \frac{- ( - 19 ) + 5}{2 \cdot 1} : 12

a = \frac{- ( - 19 ) - 5}{2 \cdot 1} : 7

The solutions to the quadratic equation are:

a = 12, a = 7

- 6 u - 7 u - 27 = 38

1 - x = 0

(- 2 x)^{2}

3 w + 4 w^{4} + 6 w^{2} + 2 w^{3}

- \frac{3}{2} - (- \frac{3}{4})

What are the solutions to the equation a^2-19*a+84=0 ?
The solutions to the equation a^2-19*a+84=0 are a=12,a=7
Find the zeros of a^2-19*a+84=0
The zeros of a^2-19*a+84=0 are a=12,a=7