21x(x-3)+17(x-3)=

Simple and best practice solution for 21x(x-3)+17(x-3)= 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(x-3)+17(x-3)= equation:


Simplifying
21x(x + -3) + 17(x + -3) = 0

Reorder the terms:
21x(-3 + x) + 17(x + -3) = 0
(-3 * 21x + x * 21x) + 17(x + -3) = 0
(-63x + 21x2) + 17(x + -3) = 0

Reorder the terms:
-63x + 21x2 + 17(-3 + x) = 0
-63x + 21x2 + (-3 * 17 + x * 17) = 0
-63x + 21x2 + (-51 + 17x) = 0

Reorder the terms:
-51 + -63x + 17x + 21x2 = 0

Combine like terms: -63x + 17x = -46x
-51 + -46x + 21x2 = 0

Solving
-51 + -46x + 21x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-17 + -21x)(3 + -1x) = 0

Subproblem 1

Set the factor '(-17 + -21x)' equal to zero and attempt to solve: Simplifying -17 + -21x = 0 Solving -17 + -21x = 0 Move all terms containing x to the left, all other terms to the right. Add '17' to each side of the equation. -17 + 17 + -21x = 0 + 17 Combine like terms: -17 + 17 = 0 0 + -21x = 0 + 17 -21x = 0 + 17 Combine like terms: 0 + 17 = 17 -21x = 17 Divide each side by '-21'. x = -0.8095238095 Simplifying x = -0.8095238095

Subproblem 2

Set the factor '(3 + -1x)' equal to zero and attempt to solve: Simplifying 3 + -1x = 0 Solving 3 + -1x = 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 + -1x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1x = 0 + -3 -1x = 0 + -3 Combine like terms: 0 + -3 = -3 -1x = -3 Divide each side by '-1'. x = 3 Simplifying x = 3

Solution

x = {-0.8095238095, 3}

See similar equations:

| x/2=x/3-1/6 | | 7(1/10)-1 | | -2(-8-6x)=16 | | 5x+4x+6=87 | | y^2+3*y=6*y+10 | | 4x-14+x=16 | | 12y+4+4y= | | 189=-6x-3(-7x-18) | | 5y+2.5x=1000 | | B+244=360 | | (x-6.4)=4.7 | | 9+8(-7f+4)= | | x(x)+8x=130 | | 9-(2x+10)=27-6x | | -3-7(5+2p)= | | 3(6v+7)=21+7b | | 3(g+4)=g | | -1/4p=6 | | -3(-2n+2)=3n-6 | | 12.5x+17= | | 2.745*x=20 | | 2/3=1/2x | | .75s-5/8s=44 | | -2(7g-5)= | | -6(b-7)=-2+5b | | (1-i)x^2+(2-i)x+2=-1 | | x-6.4=4.7 | | 2x-19+3x=21 | | 6n-10n+3= | | 32-n=(3n-8) | | 2/7×m=8/14 | | 0.02x+0.1=100 |

Equations solver categories