20x^3+82x^2+42x=

Simple and best practice solution for 20x^3+82x^2+42x= 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 20x^3+82x^2+42x= equation:


Simplifying
20x3 + 82x2 + 42x = 0

Reorder the terms:
42x + 82x2 + 20x3 = 0

Solving
42x + 82x2 + 20x3 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '2x'.
2x(21 + 41x + 10x2) = 0

Factor a trinomial.
2x((7 + 2x)(3 + 5x)) = 0

Ignore the factor 2.

Subproblem 1

Set the factor 'x' equal to zero and attempt to solve: Simplifying x = 0 Solving x = 0 Move all terms containing x to the left, all other terms to the right. Simplifying x = 0

Subproblem 2

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 3

Set the factor '(3 + 5x)' equal to zero and attempt to solve: Simplifying 3 + 5x = 0 Solving 3 + 5x = 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 + 5x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + 5x = 0 + -3 5x = 0 + -3 Combine like terms: 0 + -3 = -3 5x = -3 Divide each side by '5'. x = -0.6 Simplifying x = -0.6

Solution

x = {0, -3.5, -0.6}

See similar equations:

| lnx^5=20 | | 6x(4x^2+6x+5)-2x(5-x)= | | 2x+11+53=90 | | lne^5x=7 | | 3x+4y-6=20 | | 7(5x+13)=21 | | 5(2x-7)=-85 | | 7x-3=7(x-6) | | 3x-2=4(x+6) | | 42x^2-181x+25= | | 19.4=f+6 | | 3a+14=5a-4 | | 18x^3+x^2-19x= | | 4n+6n=-14 | | 15+-3=4t-14 | | qx+rx+2=s | | 8w-4w=12 | | x-3(x-3)=2x | | -12=x+0.3x | | 2h+9=2 | | 21x^2-22xy-8y^2= | | F(x)=11+9 | | -4(4y-8)+9= | | -10(-3+p)=120 | | 4(a-5b)-[3-2(a-b)]= | | (2x+9)+(3x+1)=90 | | 216+3y=3(108-3y) | | 4n-(n+4)=2n(n+2)+6 | | 5x^2-30x+30= | | 2x^2-3=-4x-3 | | 13-6x=-41 | | x^2+12*x=108 |

Equations solver categories