8y^2+26y+21=0

Simple and best practice solution for 8y^2+26y+21=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 8y^2+26y+21=0 equation:


Simplifying
8y2 + 26y + 21 = 0

Reorder the terms:
21 + 26y + 8y2 = 0

Solving
21 + 26y + 8y2 = 0

Solving for variable 'y'.

Factor a trinomial.
(7 + 4y)(3 + 2y) = 0

Subproblem 1

Set the factor '(7 + 4y)' equal to zero and attempt to solve: Simplifying 7 + 4y = 0 Solving 7 + 4y = 0 Move all terms containing y to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + 4y = 0 + -7 Combine like terms: 7 + -7 = 0 0 + 4y = 0 + -7 4y = 0 + -7 Combine like terms: 0 + -7 = -7 4y = -7 Divide each side by '4'. y = -1.75 Simplifying y = -1.75

Subproblem 2

Set the factor '(3 + 2y)' equal to zero and attempt to solve: Simplifying 3 + 2y = 0 Solving 3 + 2y = 0 Move all terms containing y to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + 2y = 0 + -3 Combine like terms: 3 + -3 = 0 0 + 2y = 0 + -3 2y = 0 + -3 Combine like terms: 0 + -3 = -3 2y = -3 Divide each side by '2'. y = -1.5 Simplifying y = -1.5

Solution

y = {-1.75, -1.5}

See similar equations:

| 6x^2*6x^4= | | -9.24-2.436= | | 9y^2=-27y | | -3.9-(-0.35)+8.6-8= | | 3(5)+4y=125 | | 4t-8+20=5 | | 124x=24 | | 4+5.2X=-2.3X+7 | | Y=7-x | | 8x-(6x+4)=8 | | x+1-6=4 | | 0.8(x+300)=0.86x-198 | | 43-14p+7=-97 | | 8x+8=7x-9 | | 2x+4+6=22 | | x+(2x+6)=3 | | x+(2x+6)=10 | | -1(-1*X)=39 | | -1(-1xX)=39 | | 9x+12y-4x-6.2+30= | | 6x+x=252 | | 3x^3+17x^2-28x=0 | | -6x-11x=-68 | | -6x-11x=68 | | 220=40t | | b^2-12+36=0 | | 3x^2+14x-16= | | 8x^3+15x^2-27x=0 | | 2x^2+10x+5=0 | | s=3h+3v | | 5m-2+36=-4 | | X^3=2x |

Equations solver categories