What are the solutions to the equation -7x^2+2x=-9 ?

The solutions to the equation -7x^2+2x=-9 are x=-1,x= 9/7

Find the zeros of -7x^2+2x=-9

The zeros of -7x^2+2x=-9 are x=-1,x= 9/7

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- 7 x^{2} + 2 x = - 9

x = - 1, x = \frac{9}{7}

Decimal Notation

x = - 1, x = 1.28571 \dots

Solution steps

- 7 x^{2} + 2 x = - 9

Move

9

to the left side

- 7 x^{2} + 2 x + 9 = 0

Solve with the quadratic formula

x_{1, 2} = \frac{- 2 \pm 2 ^{2} - 4 ( - 7 ) \cdot 9}{2 ( - 7 )}

2^{2} - 4 (- 7) \cdot 9 = 16

x_{1, 2} = \frac{- 2 \pm 16}{2 ( - 7 )}

Separate the solutions

x_{1} = \frac{- 2 + 16}{2 ( - 7 )}, x_{2} = \frac{- 2 - 16}{2 ( - 7 )}

x = \frac{- 2 + 16}{2 ( - 7 )} : - 1

x = \frac{- 2 - 16}{2 ( - 7 )} : \frac{9}{7}

The solutions to the quadratic equation are:

x = - 1, x = \frac{9}{7}

4 + 9 n - 3 n^{2} = 2 - n

25 x^{2} = 0

0 = 12 x^{2} - 32 x

x^{2} - 4 x - 3 = 2

9 x^{2} + 6 x + 1

What are the solutions to the equation -7x^2+2x=-9 ?
The solutions to the equation -7x^2+2x=-9 are x=-1,x= 9/7
Find the zeros of -7x^2+2x=-9
The zeros of -7x^2+2x=-9 are x=-1,x= 9/7