-3x^2-2x-8=0

Simple and best practice solution for -3x^2-2x-8=0 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^2-2x-8=0 equation:


Simplifying
-3x2 + -2x + -8 = 0

Reorder the terms:
-8 + -2x + -3x2 = 0

Solving
-8 + -2x + -3x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '-1'.
-1(8 + 2x + 3x2) = 0

Ignore the factor -1.

Subproblem 1

Set the factor '(8 + 2x + 3x2)' equal to zero and attempt to solve: Simplifying 8 + 2x + 3x2 = 0 Solving 8 + 2x + 3x2 = 0 Begin completing the square. Divide all terms by 3 the coefficient of the squared term: Divide each side by '3'. 2.666666667 + 0.6666666667x + x2 = 0 Move the constant term to the right: Add '-2.666666667' to each side of the equation. 2.666666667 + 0.6666666667x + -2.666666667 + x2 = 0 + -2.666666667 Reorder the terms: 2.666666667 + -2.666666667 + 0.6666666667x + x2 = 0 + -2.666666667 Combine like terms: 2.666666667 + -2.666666667 = 0.000000000 0.000000000 + 0.6666666667x + x2 = 0 + -2.666666667 0.6666666667x + x2 = 0 + -2.666666667 Combine like terms: 0 + -2.666666667 = -2.666666667 0.6666666667x + x2 = -2.666666667 The x term is 0.6666666667x. Take half its coefficient (0.3333333334). Square it (0.1111111112) and add it to both sides. Add '0.1111111112' to each side of the equation. 0.6666666667x + 0.1111111112 + x2 = -2.666666667 + 0.1111111112 Reorder the terms: 0.1111111112 + 0.6666666667x + x2 = -2.666666667 + 0.1111111112 Combine like terms: -2.666666667 + 0.1111111112 = -2.5555555558 0.1111111112 + 0.6666666667x + x2 = -2.5555555558 Factor a perfect square on the left side: (x + 0.3333333334)(x + 0.3333333334) = -2.5555555558 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:

| 0.6(205-(18/2)-r)+r | | T=5s+19.36 | | 6x^3+2x-18=0 | | 170/1/7 | | (6y-1)= | | 7x-3=7(x-5) | | 8(-5x-2)-6=13-5x | | 3x+7=3x+5 | | 30+30+x+x=90 | | 6.5*x=3 | | 20k-13minus-14=-14 | | 6(-4)-6y=16 | | -4y-x=3 | | 27+1X1/3 | | -9a+14a= | | 1-3x-y=3 | | 0.55x+0.3x=x-7.5 | | -43=2(1+5v)-5 | | 4*x=3 | | 7x-4=-2d+1+9x-5 | | t+12+t=-318 | | 6y-11/4 | | 7+4(2a+15)=-14 | | 2/3(3x+9)=-2(2x+6) | | 0.2X+6.5=5.2 | | 1/3+3=5 | | x+2x+(7x+3)=23 | | -2/h=2 | | 4(-3)+3=-9 | | y=-2x+6slope | | -7x+2x-3x-7=17 | | 6y+21y= |

Equations solver categories