21x^2+44x+15=0

Simple and best practice solution for 21x^2+44x+15=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 21x^2+44x+15=0 equation:


Simplifying
21x2 + 44x + 15 = 0

Reorder the terms:
15 + 44x + 21x2 = 0

Solving
15 + 44x + 21x2 = 0

Solving for variable 'x'.

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

Subproblem 1

Set the factor '(5 + 3x)' equal to zero and attempt to solve: Simplifying 5 + 3x = 0 Solving 5 + 3x = 0 Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + 3x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + 3x = 0 + -5 3x = 0 + -5 Combine like terms: 0 + -5 = -5 3x = -5 Divide each side by '3'. x = -1.666666667 Simplifying x = -1.666666667

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 = {-1.666666667, -0.4285714286}

See similar equations:

| 62=12 | | 9x=65+4 | | 8(12w+1)= | | 16x^2+4x=12 | | 54-7x=11x+22 | | 108=2(16)+2(L) | | 5(y-3)=5 | | x-8/5=2/4 | | 16x(x-2)-(x-16)=29 | | 22+6m+2m=-15+12m | | 12-9x=45-16 | | 11k-[4k+(-2+6k)]= | | 6(6)+3x=18 | | 6x+3(0)=18 | | 6(0)+3x=18 | | 3p+4=24 | | 12x+7=40 | | 108=2(6+2x)+2(x) | | -12x-1,2=3 | | 20-Gy=18 | | 7-9x=41-16x | | 108=2(6+2w)+2(x) | | 9*(7-4)2+9= | | 230-6x=39x+15 | | 159-2x=25x+15 | | 2-3=11 | | 3(3x-2)+17=7x+3 | | -31x-2x=5-8x | | 13x^2+5x-8=0 | | 5xy+7=62 | | X^2+5x=x^2-x-12 | | 6x-5=4x+15 |

Equations solver categories