21x^2+5x-35=3x^2-4x

Simple and best practice solution for 21x^2+5x-35=3x^2-4x 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+5x-35=3x^2-4x equation:


Simplifying
21x2 + 5x + -35 = 3x2 + -4x

Reorder the terms:
-35 + 5x + 21x2 = 3x2 + -4x

Reorder the terms:
-35 + 5x + 21x2 = -4x + 3x2

Solving
-35 + 5x + 21x2 = -4x + 3x2

Solving for variable 'x'.

Reorder the terms:
-35 + 5x + 4x + 21x2 + -3x2 = -4x + 3x2 + 4x + -3x2

Combine like terms: 5x + 4x = 9x
-35 + 9x + 21x2 + -3x2 = -4x + 3x2 + 4x + -3x2

Combine like terms: 21x2 + -3x2 = 18x2
-35 + 9x + 18x2 = -4x + 3x2 + 4x + -3x2

Reorder the terms:
-35 + 9x + 18x2 = -4x + 4x + 3x2 + -3x2

Combine like terms: -4x + 4x = 0
-35 + 9x + 18x2 = 0 + 3x2 + -3x2
-35 + 9x + 18x2 = 3x2 + -3x2

Combine like terms: 3x2 + -3x2 = 0
-35 + 9x + 18x2 = 0

Factor a trinomial.
(-5 + -3x)(7 + -6x) = 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 '(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

Solution

x = {-1.666666667, 1.166666667}

See similar equations:

| 9m^2+27m=0 | | m+8=23 | | 62w=76.942 | | 12x^2-18x-6x+2=0 | | 4.19d+-1.99d=74.8+1.99d+-1.99d | | 3(5x+6)=-26+29 | | 700=-35x | | 6a+4b+8a+2b= | | 2w^2-98=0 | | 38t=85.5 | | 2x(5+13x)=20 | | 1.5k=48 | | (x)(x+6)=40 | | 6.5y=19.5 | | X-3X-4=-7X+9 | | -24k=144 | | -6x+16=70 | | 12e=720 | | 3(x+2)=x-1 | | (x)(7x)= | | 8y-13(7y+9)=381 | | .75x=.25 | | 3(2x)*4+x=75 | | x^2-2x=18+5x | | (y-7)(y-1)= | | 2x(3x+5)*(6x-8)=0 | | -2x-7=-13 | | (-32y)-24y=0 | | 24=-3s | | 12x+36=10x+48 | | x^2-7x=6x-36 | | 17-4x= |

Equations solver categories