16x^2+40x+21=0

Simple and best practice solution for 16x^2+40x+21=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 16x^2+40x+21=0 equation:


Simplifying
16x2 + 40x + 21 = 0

Reorder the terms:
21 + 40x + 16x2 = 0

Solving
21 + 40x + 16x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(7 + 4x)(3 + 4x) = 0

Subproblem 1

Set the factor '(7 + 4x)' equal to zero and attempt to solve: Simplifying 7 + 4x = 0 Solving 7 + 4x = 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 + 4x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + 4x = 0 + -7 4x = 0 + -7 Combine like terms: 0 + -7 = -7 4x = -7 Divide each side by '4'. x = -1.75 Simplifying x = -1.75

Subproblem 2

Set the factor '(3 + 4x)' equal to zero and attempt to solve: Simplifying 3 + 4x = 0 Solving 3 + 4x = 0 Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + 4x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + 4x = 0 + -3 4x = 0 + -3 Combine like terms: 0 + -3 = -3 4x = -3 Divide each side by '4'. x = -0.75 Simplifying x = -0.75

Solution

x = {-1.75, -0.75}

See similar equations:

| 10(x+6)=5(x+21) | | 3(x-5)=48-6x | | X+(3x)+180+(1.5x)=455 | | 5x-6=69-10x | | x^2-22x+121=-17.28(y-7) | | d+9=-4 | | 6H-5H+3= | | 3=x^3 | | x^2+y^2-4y=0 | | 11+N=17 | | -x/5=x-1 | | -20+4(2x+5)=-61 | | 7-2y=13+4y | | .57x=.82y | | 12x-2(4x-2)=28 | | 7+-3v=v+6 | | 54x+2x=21 | | 6(2-(2x-4))=2(6-3x) | | 2x-8+3x-12+5x-20+x-4=0 | | h-13=7 | | (X-46)+(.5x)+(x-35)+x=360 | | 16x+2=12x+1 | | 14x*14=14 | | 13-3x=8+4x | | 2x-15=18x-7 | | 7+v*-3=6+v | | 7+v-3=6+v | | 1+x^2+9x^2=4x^2+1+6 | | 2t^4-10t^3=0 | | 6-3*(2x-4)=2*(1+x) | | -3(-2x+2)=12 | | -4x*12=-4 |

Equations solver categories