x^2+16=-5x

Simple and best practice solution for x^2+16=-5x equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for x^2+16=-5x equation:


Simplifying
x2 + 16 = -5x

Reorder the terms:
16 + x2 = -5x

Solving
16 + x2 = -5x

Solving for variable 'x'.

Reorder the terms:
16 + 5x + x2 = -5x + 5x

Combine like terms: -5x + 5x = 0
16 + 5x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-16' to each side of the equation.
16 + 5x + -16 + x2 = 0 + -16

Reorder the terms:
16 + -16 + 5x + x2 = 0 + -16

Combine like terms: 16 + -16 = 0
0 + 5x + x2 = 0 + -16
5x + x2 = 0 + -16

Combine like terms: 0 + -16 = -16
5x + x2 = -16

The x term is 5x.  Take half its coefficient (2.5).
Square it (6.25) and add it to both sides.

Add '6.25' to each side of the equation.
5x + 6.25 + x2 = -16 + 6.25

Reorder the terms:
6.25 + 5x + x2 = -16 + 6.25

Combine like terms: -16 + 6.25 = -9.75
6.25 + 5x + x2 = -9.75

Factor a perfect square on the left side:
(x + 2.5)(x + 2.5) = -9.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| N-8+n-15=n-3+6n | | 310÷4/15= | | 7-2=7x+10 | | .1=(132-x)/x | | 0.25p+0.2(10-p)= | | 5x-3(x+7)=2 | | 3-x=108/x | | -2(x+5)=5 | | .10=(132-x)/x | | 3x+6+9x-12=6x-3 | | 6+3(p+4)=p+1 | | ln(x+7)-ln(2x+5)=ln(x-1) | | 3m^2-27p+42=0 | | 7x+3=-5x+15 | | 1c=l | | -7=8y+5(y-5) | | 14(6c-4)=2c*5 | | (6x+7y)5= | | 6x-1=29+x | | 8p^2+96p+256=0 | | y(3X-4)=20 | | -1(-7a+6)=-16-7a | | 4w-6=-22 | | 3(2x+2)-12=7x+6 | | 11x-6=-19 | | 3x-3=5x-19 | | 5r-140=-25 | | y=3+5x-kx | | 8-7r=7-r-6r | | 5.3m=1.7-2.4m+7.7(m+1) | | 2r^2+5r-12=0 | | 5z-y=7 |

Equations solver categories