-3x(x+2)=16-x

Simple and best practice solution for -3x(x+2)=16-x 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 -3x(x+2)=16-x equation:


Simplifying
-3x(x + 2) = 16 + -1x

Reorder the terms:
-3x(2 + x) = 16 + -1x
(2 * -3x + x * -3x) = 16 + -1x
(-6x + -3x2) = 16 + -1x

Solving
-6x + -3x2 = 16 + -1x

Solving for variable 'x'.

Reorder the terms:
-16 + -6x + x + -3x2 = 16 + -1x + -16 + x

Combine like terms: -6x + x = -5x
-16 + -5x + -3x2 = 16 + -1x + -16 + x

Reorder the terms:
-16 + -5x + -3x2 = 16 + -16 + -1x + x

Combine like terms: 16 + -16 = 0
-16 + -5x + -3x2 = 0 + -1x + x
-16 + -5x + -3x2 = -1x + x

Combine like terms: -1x + x = 0
-16 + -5x + -3x2 = 0

Factor out the Greatest Common Factor (GCF), '-1'.
-1(16 + 5x + 3x2) = 0

Ignore the factor -1.

Subproblem 1

Set the factor '(16 + 5x + 3x2)' equal to zero and attempt to solve: Simplifying 16 + 5x + 3x2 = 0 Solving 16 + 5x + 3x2 = 0 Begin completing the square. Divide all terms by 3 the coefficient of the squared term: Divide each side by '3'. 5.333333333 + 1.666666667x + x2 = 0 Move the constant term to the right: Add '-5.333333333' to each side of the equation. 5.333333333 + 1.666666667x + -5.333333333 + x2 = 0 + -5.333333333 Reorder the terms: 5.333333333 + -5.333333333 + 1.666666667x + x2 = 0 + -5.333333333 Combine like terms: 5.333333333 + -5.333333333 = 0.000000000 0.000000000 + 1.666666667x + x2 = 0 + -5.333333333 1.666666667x + x2 = 0 + -5.333333333 Combine like terms: 0 + -5.333333333 = -5.333333333 1.666666667x + x2 = -5.333333333 The x term is 1.666666667x. Take half its coefficient (0.8333333335). Square it (0.6944444447) and add it to both sides. Add '0.6944444447' to each side of the equation. 1.666666667x + 0.6944444447 + x2 = -5.333333333 + 0.6944444447 Reorder the terms: 0.6944444447 + 1.666666667x + x2 = -5.333333333 + 0.6944444447 Combine like terms: -5.333333333 + 0.6944444447 = -4.6388888883 0.6944444447 + 1.666666667x + x2 = -4.6388888883 Factor a perfect square on the left side: (x + 0.8333333335)(x + 0.8333333335) = -4.6388888883 Can't calculate square root of the right side. The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.

See similar equations:

| 4.2p=12.6 | | 24.55+a-15.60=125.45 | | Y=.8x+12 | | 6p=162 | | 16=.75x | | 0.75r+8=24 | | (x+2)+0.1x=0.2 | | -160=-8(7+r) | | 2.5a-15=4h | | -15=2x-9 | | 120-22n=105-4n | | 30n^2+54n=0 | | 4x-2x(x-2)=-9+5x-8 | | -52+3x=32-x | | 10x-(5x+-9)=44 | | -49x^2+84x-32=0 | | 100+30x+30x=180 | | 5(q^6c+10)= | | 3-6t=-21 | | a-2=-24 | | 19x-8-15x=2(2x-5)+2 | | 10s+8n=160 | | 9-5(x+1)=-28 | | 6-(4e+4)=3+2(e+2) | | x+21=-9 | | 6-17x=13x-18 | | -3c=21 | | 8x+7x+24=54 | | (2.3+n)1.4= | | y=31.92x+8631 | | -5(3w+1)-w=27 | | 7(3-2x)-4=36 |

Equations solver categories