7a^2+61a+40=0

Simple and best practice solution for 7a^2+61a+40=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+61a+40=0 equation:


Simplifying
7a2 + 61a + 40 = 0

Reorder the terms:
40 + 61a + 7a2 = 0

Solving
40 + 61a + 7a2 = 0

Solving for variable 'a'.

Factor a trinomial.
(8 + a)(5 + 7a) = 0

Subproblem 1

Set the factor '(8 + a)' equal to zero and attempt to solve: Simplifying 8 + a = 0 Solving 8 + a = 0 Move all terms containing a to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + a = 0 + -8 Combine like terms: 8 + -8 = 0 0 + a = 0 + -8 a = 0 + -8 Combine like terms: 0 + -8 = -8 a = -8 Simplifying a = -8

Subproblem 2

Set the factor '(5 + 7a)' equal to zero and attempt to solve: Simplifying 5 + 7a = 0 Solving 5 + 7a = 0 Move all terms containing a to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + 7a = 0 + -5 Combine like terms: 5 + -5 = 0 0 + 7a = 0 + -5 7a = 0 + -5 Combine like terms: 0 + -5 = -5 7a = -5 Divide each side by '7'. a = -0.7142857143 Simplifying a = -0.7142857143

Solution

a = {-8, -0.7142857143}

See similar equations:

| -6(8-4z)=-72 | | 3x^2-x-2=2 | | -6(4x+5)=-246 | | -8b+12-4b=-180 | | 3x+1-3=1 | | x^2+y^2=76 | | -6(-4+4x)=-216 | | A=(3x-1)(5x+4) | | -3(6+7x)=-186 | | 15x-3=12x+15 | | 3x^3-25x-10=0 | | .4n+4=20 | | m^2+9m-22=0 | | 261-5x=40x+21 | | -15x+y=35 | | 5w+a+2w+8= | | 80r=705600r^2-6350400 | | 6+9x=14-4x | | E^3x=8 | | x/16=6 | | y=-3/2x+9 | | 77-6x=39x+22 | | 8y-3y+7y= | | 3r-4=3(r-3) | | -65-9x=43-16x | | 3x^2-23x-19=-11 | | 4x^2-34=5x^2+19x | | 2/3x11=7 | | 47-2x=8x-17 | | 14x/d+y/d=7 | | 30.5+603/4=x | | 2x^2+23x+71=8 |

Equations solver categories