5x^2+21x+4=

Simple and best practice solution for 5x^2+21x+4= 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 5x^2+21x+4= equation:


Simplifying
5x2 + 21x + 4 = 0

Reorder the terms:
4 + 21x + 5x2 = 0

Solving
4 + 21x + 5x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(4 + x)(1 + 5x) = 0

Subproblem 1

Set the factor '(4 + x)' equal to zero and attempt to solve: Simplifying 4 + x = 0 Solving 4 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + x = 0 + -4 x = 0 + -4 Combine like terms: 0 + -4 = -4 x = -4 Simplifying x = -4

Subproblem 2

Set the factor '(1 + 5x)' equal to zero and attempt to solve: Simplifying 1 + 5x = 0 Solving 1 + 5x = 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 + 5x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 5x = 0 + -1 5x = 0 + -1 Combine like terms: 0 + -1 = -1 5x = -1 Divide each side by '5'. x = -0.2 Simplifying x = -0.2

Solution

x = {-4, -0.2}

See similar equations:

| 4c+12y=24 | | 0.01(7)+0.003(7)= | | 0.01(7)+0.003= | | 4c+12y=20 | | 2m^2-128m= | | 3p^2-3p-90= | | -16t^2+320t=1538 | | x^12X+20= | | 3p^2-24p+36= | | 108=6x+y | | 16t^2+320t=1538 | | 4c+12y=16 | | 5p^2+20p-60= | | 2x-4=20x+5 | | (3a^2b)*(-a^3b^2c)= | | 0.2x+3.6=0.8x-1.2 | | (3a^2b)*(a^3b^2c)= | | x/6+x/8=1 | | 6c+12y=18 | | 6c+12y=12 | | 11(9x-7x)=-2 | | 24y^2-22y+3=0 | | x+(-15)=5 | | x(x)-12=x | | 11(8+x)=9(5+x) | | 10x^3-5=0 | | -5x+x+2w= | | 5+4y=y+3 | | n^3-n-6=0 | | 9x^6y^2(-6x^3z+2y^2+-4z)= | | 4c+8y=16 | | 3-3(x+3)=x-4(3-x) |

Equations solver categories