1+4x-21x^2=0

Simple and best practice solution for 1+4x-21x^2=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 1+4x-21x^2=0 equation:


Simplifying
1 + 4x + -21x2 = 0

Solving
1 + 4x + -21x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(1 + -3x)(1 + 7x) = 0

Subproblem 1

Set the factor '(1 + -3x)' equal to zero and attempt to solve: Simplifying 1 + -3x = 0 Solving 1 + -3x = 0 Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + -3x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -3x = 0 + -1 -3x = 0 + -1 Combine like terms: 0 + -1 = -1 -3x = -1 Divide each side by '-3'. x = 0.3333333333 Simplifying x = 0.3333333333

Subproblem 2

Set the factor '(1 + 7x)' equal to zero and attempt to solve: Simplifying 1 + 7x = 0 Solving 1 + 7x = 0 Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + 7x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 7x = 0 + -1 7x = 0 + -1 Combine like terms: 0 + -1 = -1 7x = -1 Divide each side by '7'. x = -0.1428571429 Simplifying x = -0.1428571429

Solution

x = {0.3333333333, -0.1428571429}

See similar equations:

| 2y+7y=180 | | C=38.48+0.50x | | 2w(w+2)=0 | | 8(p-1.25)=4(2p-0.5) | | 105x^2-238x+105=0 | | x+0.5=-0.16666 | | 5+r/(-2)=-6 | | 14y^2=180 | | (2x^-3y^2)^-4/(2x^2y)^-3 | | y=-4x/1 | | y=4x/1 | | 3log(2x)+4=7 | | x^3+11x^2+18=0 | | 6n+21=57 | | sin^2x-3sinx-10=0 | | ln(9x-8)=6 | | 7x-4+6x=7x+35-7x | | 13(t-5)+5t=6(3t+3)-13 | | 36u^2=9u | | -6X+13+7X=-2 | | -.45(40)+.8X=.3(40+X) | | 2(-10)+5y=10 | | 4w+3w-6w-6w=w+15+2w-31 | | 1-5x=13+x | | 4g^2+2g+3=0 | | 4X+8-3X=3 | | 2y+6=8+3y | | (x-2)(3x+5)= | | -10/x=5/x-10/3 | | x-255=443 | | 46=3u-11 | | 600=2500(X)(4) |

Equations solver categories