21x^2-44x+15=

Simple and best practice solution for 21x^2-44x+15= 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= 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.
(3 + -7x)(5 + -3x) = 0

Subproblem 1

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

Subproblem 2

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

Solution

x = {0.4285714286, 1.666666667}

See similar equations:

| 44+7h=59 | | 16a^2-12a^3-18a^4=0 | | -6x+2(x+4)=0 | | x^3+0.581-2.716x^2=0 | | lx+2l-3=9 | | 8x+2=-5x+6 | | 2n-7n=5 | | 8c-2c-2c-2c=16 | | h-8h-14h+7=-14 | | k^4-12k^4= | | a^3+0.581-2.716b^2=0 | | 14a=12a-6 | | 7(d-5)+12=5whatisd | | (7/10)x=21/20 | | 4+5+2x=x | | -13q-q=14 | | k-43.4=-120 | | -2(a-8)+6a=369 | | 16+9=9y-2x | | 16(x+2)=4(4x+3)20 | | 6x+12-30x-(-8)= | | -11=v+6 | | 14a=12a-2 | | yz+4=xforz | | 3b-9b=30 | | -2c-6=16 | | 13x-12=12x-18 | | 5x+2-x=-4c | | 32x^2-128x+240=0 | | 4n-6m=2n | | 2(8-2x)=20 | | 11u+14u+-18u+17=3 |

Equations solver categories