7x^2+56x+84=0

Simple and best practice solution for 7x^2+56x+84=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^2+56x+84=0 equation:


Simplifying
7x2 + 56x + 84 = 0

Reorder the terms:
84 + 56x + 7x2 = 0

Solving
84 + 56x + 7x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '7'.
7(12 + 8x + x2) = 0

Factor a trinomial.
7((6 + x)(2 + x)) = 0

Ignore the factor 7.

Subproblem 1

Set the factor '(6 + x)' equal to zero and attempt to solve: Simplifying 6 + x = 0 Solving 6 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + x = 0 + -6 Combine like terms: 6 + -6 = 0 0 + x = 0 + -6 x = 0 + -6 Combine like terms: 0 + -6 = -6 x = -6 Simplifying x = -6

Subproblem 2

Set the factor '(2 + x)' equal to zero and attempt to solve: Simplifying 2 + x = 0 Solving 2 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + x = 0 + -2 x = 0 + -2 Combine like terms: 0 + -2 = -2 x = -2 Simplifying x = -2

Solution

x = {-6, -2}

See similar equations:

| 2y-30+90=180 | | (5v+2)(6-v)=0 | | (y-5)(y-6)= | | -8(v+2)+4v+6=7v+6 | | -4z(z-1)(z+7)=0 | | 2x-18=-2 | | 41-16=5(x-9) | | 5(2x)+7x=102 | | 3(6+c)=2(c-1) | | x+2x+3x=210 | | 6(6+c)=2(c-1) | | (9x+4)(9x+4)=10 | | 16x(16)-25=0 | | 13=8-6x | | -3c+1=-8 | | (x+15)=(4x-45) | | 16y-24(80-16y)=24+40y | | 2x(x-3)=5(x+1) | | -9n+10=-8n-8 | | 2y-y=12 | | 2(t-4)+12=3t-5 | | X+(x-8)=30 | | 4-b-2=8 | | 5y^3+13y-24=0 | | x^6+61x^3-8000=0 | | 2+x+2x^2+x^3=0 | | 8x+5y=11 | | (x+6)/2+(x+1)/7=4 | | 5x+6y=21 | | 7x+6y=23 | | x+5/2+x+2/5=5 | | 9x+3y=40 |

Equations solver categories