42x^2+67x+21=

Simple and best practice solution for 42x^2+67x+21= 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 42x^2+67x+21= equation:


Simplifying
42x2 + 67x + 21 = 0

Reorder the terms:
21 + 67x + 42x2 = 0

Solving
21 + 67x + 42x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(7 + 6x)(3 + 7x) = 0

Subproblem 1

Set the factor '(7 + 6x)' equal to zero and attempt to solve: Simplifying 7 + 6x = 0 Solving 7 + 6x = 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 + 6x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + 6x = 0 + -7 6x = 0 + -7 Combine like terms: 0 + -7 = -7 6x = -7 Divide each side by '6'. x = -1.166666667 Simplifying x = -1.166666667

Subproblem 2

Set the factor '(3 + 7x)' equal to zero and attempt to solve: Simplifying 3 + 7x = 0 Solving 3 + 7x = 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 + 7x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + 7x = 0 + -3 7x = 0 + -3 Combine like terms: 0 + -3 = -3 7x = -3 Divide each side by '7'. x = -0.4285714286 Simplifying x = -0.4285714286

Solution

x = {-1.166666667, -0.4285714286}

See similar equations:

| 4y+ax=b+8y(x) | | x^3-x-2= | | -11*-24= | | -9x+9y=27 | | 15n+18=-6n+2 | | 2-2n=3(-n+2) | | 3m+8=3(4+m)-4 | | -48+(-13)= | | 6n+7-2n-14=4n+8 | | h(t)=-t-17 | | 3x^2-16x=64+y | | g(x)=5+0x | | 57+(-104)= | | x^2+x-48=3x | | 3n+6+n-8=2n-2+2n | | 3n+5(n-2)=3n+8(2-n) | | -43+81= | | 7(3-2n)-1=6-7n | | 52+(-7)= | | x^2-4x=-x+70 | | 5(3+x)-(8x+9)=-4 | | a(t)=12-4t | | -38+7= | | 10x+9=2x-7 | | 3x^4(1-x)=0 | | -3.2=-6.8 | | -16+-29= | | x^2+17=-10x+1 | | -2(4-3k)+8k= | | x^2-90=2x-10 | | -8(b-87)=-72 | | 4b+1-b=7 |

Equations solver categories