7x^4-49x^3+84x^2=0

Simple and best practice solution for 7x^4-49x^3+84x^2=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 7x^4-49x^3+84x^2=0 equation:


Simplifying
7x4 + -49x3 + 84x2 = 0

Reorder the terms:
84x2 + -49x3 + 7x4 = 0

Solving
84x2 + -49x3 + 7x4 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '7x2'.
7x2(12 + -7x + x2) = 0

Factor a trinomial.
7x2((3 + -1x)(4 + -1x)) = 0

Ignore the factor 7.

Subproblem 1

Set the factor 'x2' equal to zero and attempt to solve: Simplifying x2 = 0 Solving x2 = 0 Move all terms containing x to the left, all other terms to the right. Simplifying x2 = 0 Take the square root of each side: x = {0}

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

Subproblem 3

Set the factor '(4 + -1x)' equal to zero and attempt to solve: Simplifying 4 + -1x = 0 Solving 4 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -1x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -1x = 0 + -4 -1x = 0 + -4 Combine like terms: 0 + -4 = -4 -1x = -4 Divide each side by '-1'. x = 4 Simplifying x = 4

Solution

x = {0, 3, 4}

See similar equations:

| 3x-(-2x)+(-2)=(-3x)-10 | | X(x+3)=712 | | 4z+6=4z-9 | | -8(y-7)=-2y+2 | | 18x^3+39x^2-15x=0 | | -416-X=-1263 | | 3y+5=2 | | -5x-37=-3(x+9) | | 45=n(n-1)/2 | | n+3=2(n+1)-1 | | 15x^3-147x^2-396x=0 | | 20=8-6m | | 217+X=823 | | 2x^2=-40+21x | | 8(x+5)=6x+20 | | 11(d+6)=44 | | 9x=12x-39 | | 8y-4fory=3 | | -36=-2x+4(x-4) | | -16t^2+50t+4.5=3.1931 | | X+322=-139 | | 0.6x=18x | | 96x+64=6 | | -6v+4(v+6)=28 | | 12(x+6)=10x+11 | | 7(4-6x)=3(9-15x)+3 | | 4=.75(0)+x | | 5c^2+7c+5=6 | | 3.7x-4.1y=35.3 | | 72ab-48a-45b+30=0 | | 5(u-2)+3u=-2 | | -422-X=47 |

Equations solver categories