2x^2-31x+84=0

Simple and best practice solution for 2x^2-31x+84=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 2x^2-31x+84=0 equation:


Simplifying
2x2 + -31x + 84 = 0

Reorder the terms:
84 + -31x + 2x2 = 0

Solving
84 + -31x + 2x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(7 + -2x)(12 + -1x) = 0

Subproblem 1

Set the factor '(7 + -2x)' equal to zero and attempt to solve: Simplifying 7 + -2x = 0 Solving 7 + -2x = 0 Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -2x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -2x = 0 + -7 -2x = 0 + -7 Combine like terms: 0 + -7 = -7 -2x = -7 Divide each side by '-2'. x = 3.5 Simplifying x = 3.5

Subproblem 2

Set the factor '(12 + -1x)' equal to zero and attempt to solve: Simplifying 12 + -1x = 0 Solving 12 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-12' to each side of the equation. 12 + -12 + -1x = 0 + -12 Combine like terms: 12 + -12 = 0 0 + -1x = 0 + -12 -1x = 0 + -12 Combine like terms: 0 + -12 = -12 -1x = -12 Divide each side by '-1'. x = 12 Simplifying x = 12

Solution

x = {3.5, 12}

See similar equations:

| -4=1/5x-2 | | 2x^2+16x-70=-4 | | (5x-50)/8 | | tan(4x-3)=1 | | 5x^2+47x+84=0 | | 3x^2+12x-36=y | | 1/25x^2-64 | | .75x=1125 | | .25x=1125 | | 7=2w+5 | | 24x+24=3 | | 6y(4)= | | 1.2(b-12)=66 | | b*2= | | 10x-139=3x-6 | | T/3-5=16 | | a*b=3 | | 49=7(k-14) | | =5n+20 | | 3(2x+1)+2(x-3)= | | 3-2b=5 | | 3-5z=2-32 | | 5/8*4/15 | | (16x^4y^12)^3/4 | | (3x+4)-5(4x+3)= | | .25x^2-.04x-.024=0 | | 6.3/6.3= | | 76+786= | | 9-2m=5-7m | | 5(3x-2)=95 | | 4-8x+6+4x=6x-10 | | f(x)=x^4-4x^3+5 |

Equations solver categories