3x^2+5x-100=0

Simple and best practice solution for 3x^2+5x-100=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+5x-100=0 equation:


Simplifying
3x2 + 5x + -100 = 0

Reorder the terms:
-100 + 5x + 3x2 = 0

Solving
-100 + 5x + 3x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-20 + -3x)(5 + -1x) = 0

Subproblem 1

Set the factor '(-20 + -3x)' equal to zero and attempt to solve: Simplifying -20 + -3x = 0 Solving -20 + -3x = 0 Move all terms containing x to the left, all other terms to the right. Add '20' to each side of the equation. -20 + 20 + -3x = 0 + 20 Combine like terms: -20 + 20 = 0 0 + -3x = 0 + 20 -3x = 0 + 20 Combine like terms: 0 + 20 = 20 -3x = 20 Divide each side by '-3'. x = -6.666666667 Simplifying x = -6.666666667

Subproblem 2

Set the factor '(5 + -1x)' equal to zero and attempt to solve: Simplifying 5 + -1x = 0 Solving 5 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -1x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1x = 0 + -5 -1x = 0 + -5 Combine like terms: 0 + -5 = -5 -1x = -5 Divide each side by '-1'. x = 5 Simplifying x = 5

Solution

x = {-6.666666667, 5}

See similar equations:

| 54-2x=180 | | c=535+4.50n | | -9x+-13x+7= | | 4x^2+12.5x-15=0 | | 3x-4+2x-8=4x+3-7x | | 13x-19y=-23 | | .5r+2(.75r-1)=.25+6 | | 2x^2+6.25x-7.5=0 | | 5+10r-2=5r+11-3r | | 4(x+2)=4(x+7) | | 0.9(x+80)+0.5x=121 | | 3(2p+7)=15(p+4) | | 0.32(6)+0.08x=0.16(30+x) | | (13a+7)(6a-7)=0 | | 3(p+7)=15(p+4) | | 2(2x+5)+2(3x)=110 | | 0.63(6)+0.07x=0.21(24+x) | | 30=0.6b | | 13X-48=-3X | | 9-2=5e+26 | | 8=0.5x+2 | | x+2(x-6)+x-6=54 | | 0.9x=-4.5 | | 7s=-63 | | 10x+(-5)=-20 | | x+5-20+x(-3)=50 | | 8x+(-8)=-20 | | ln(3x-13)+12=15 | | -6(7-7n)=8n+26 | | -1.3b=9 | | 43+(x-2)=150 | | 3d=21+2d |

Equations solver categories