7a^2+28a=0

Simple and best practice solution for 7a^2+28a=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 7a^2+28a=0 equation:


Simplifying
7a2 + 28a = 0

Reorder the terms:
28a + 7a2 = 0

Solving
28a + 7a2 = 0

Solving for variable 'a'.

Factor out the Greatest Common Factor (GCF), '7a'.
7a(4 + a) = 0

Ignore the factor 7.

Subproblem 1

Set the factor 'a' equal to zero and attempt to solve: Simplifying a = 0 Solving a = 0 Move all terms containing a to the left, all other terms to the right. Simplifying a = 0

Subproblem 2

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

Solution

a = {0, -4}

See similar equations:

| A=9(3.14)d | | -3(w+3)= | | 10y-7y=12 | | 5m(x+3)=15 | | 28=i^2(7) | | (5b-2)-2(2b+1)=-2 | | 19y-14y=20 | | 16=i(4) | | 3y+x=1 | | 6p^2+12p=0 | | (3c-7/2c+1)+(2c+1/1-2c) | | 12.75=s-42 | | (3c-7/2c+1)/(2c+1/1-2c) | | 7x-3=-7+5x | | 0=(x+0)(x+3) | | (-25)-43/2= | | 5x^2+20x-2x-8=0 | | 18=r(300) | | -6(w-2)= | | (-94)-(-32)= | | 3x+2+4=4 | | 0=(X+2) | | 11-(5x+4)= | | 9p+3=11+8p | | 3k+4/7*1= | | -2-(+8)(6)(-6)= | | 8n^2-64n=0 | | -12x-17=-10x+17 | | 8n^2-64m=0 | | 8a+8b-c=4 | | 4x^3-10x+4=0 | | 6+82/2= |

Equations solver categories