What are the solutions to the equation x^2+1=-4x ?

The solutions to the equation x^2+1=-4x are x=-2+sqrt(3),x=-2-sqrt(3)

Find the zeros of x^2+1=-4x

The zeros of x^2+1=-4x are x=-2+sqrt(3),x=-2-sqrt(3)

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x^{2} + 1 = - 4 x

x = - 2 + 3, x = - 2 - 3

Decimal Notation

x = - 0.26794 \dots, x = - 3.73205 \dots

Solution steps

x^{2} + 1 = - 4 x

Move

4 x

to the left side

x^{2} + 1 + 4 x = 0

Write in the standard form

a x^{2} + b x + c = 0

x^{2} + 4 x + 1 = 0

Solve with the quadratic formula

x_{1, 2} = \frac{- 4 \pm 4 ^{2} - 4 \cdot 1 \cdot 1}{2 \cdot 1}

4^{2} - 4 \cdot 1 \cdot 1 = 23

x_{1, 2} = \frac{- 4 \pm 2 3}{2 \cdot 1}

Separate the solutions

x_{1} = \frac{- 4 + 2 3}{2 \cdot 1}, x_{2} = \frac{- 4 - 2 3}{2 \cdot 1}

x = \frac{- 4 + 2 3}{2 \cdot 1} : - 2 + 3

x = \frac{- 4 - 2 3}{2 \cdot 1} : - 2 - 3

The solutions to the quadratic equation are:

x = - 2 + 3, x = - 2 - 3

4 y^{2} - 12 y = 0

r^{2} + 3 r = 8

x^{2} + 8 x + 16 = 0

2 x^{2} - 50 x = 0

3 r^{2} - 8 = 6

What are the solutions to the equation x^2+1=-4x ?
The solutions to the equation x^2+1=-4x are x=-2+sqrt(3),x=-2-sqrt(3)
Find the zeros of x^2+1=-4x
The zeros of x^2+1=-4x are x=-2+sqrt(3),x=-2-sqrt(3)