What are the solutions to the equation 7w^2-14w-13=8 ?

The solutions to the equation 7w^2-14w-13=8 are w=3,w=-1

Find the zeros of 7w^2-14w-13=8

The zeros of 7w^2-14w-13=8 are w=3,w=-1

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7 w^{2} - 14 w - 13 = 8

w = 3, w = - 1

Solution steps

7 w^{2} - 14 w - 13 = 8

Move

8

to the left side

7 w^{2} - 14 w - 21 = 0

Solve with the quadratic formula

w_{1, 2} = \frac{- ( - 14 ) \pm ( - 14 ) ^{2} - 4 \cdot 7 ( - 21 )}{2 \cdot 7}

(- 14)^{2} - 4 \cdot 7 (- 21) = 28

w_{1, 2} = \frac{- ( - 14 ) \pm 28}{2 \cdot 7}

Separate the solutions

w_{1} = \frac{- ( - 14 ) + 28}{2 \cdot 7}, w_{2} = \frac{- ( - 14 ) - 28}{2 \cdot 7}

w = \frac{- ( - 14 ) + 28}{2 \cdot 7} : 3

w = \frac{- ( - 14 ) - 28}{2 \cdot 7} : - 1

The solutions to the quadratic equation are:

w = 3, w = - 1

i^{65}

(x + y)^{2} + 6 (x + y) + 9

\frac{12 x ^{2} y}{4 x}

- 2 x - 3 = 3

4 x + 12 = 48

What are the solutions to the equation 7w^2-14w-13=8 ?
The solutions to the equation 7w^2-14w-13=8 are w=3,w=-1
Find the zeros of 7w^2-14w-13=8
The zeros of 7w^2-14w-13=8 are w=3,w=-1