3k^2+k=27

Simple and best practice solution for 3k^2+k=27 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 3k^2+k=27 equation:



3k^2+k=27
We move all terms to the left:
3k^2+k-(27)=0
a = 3; b = 1; c = -27;
Δ = b2-4ac
Δ = 12-4·3·(-27)
Δ = 325
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$k_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$k_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

The end solution:
$\sqrt{\Delta}=\sqrt{325}=\sqrt{25*13}=\sqrt{25}*\sqrt{13}=5\sqrt{13}$
$k_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(1)-5\sqrt{13}}{2*3}=\frac{-1-5\sqrt{13}}{6} $
$k_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(1)+5\sqrt{13}}{2*3}=\frac{-1+5\sqrt{13}}{6} $

See similar equations:

| 2x+7+90+65=180 | | -13=-2a+a | | 6(12+2x)=6(x+6) | | -13=-2a-10 | | 35,000–2.5x=0 | | 1+3n=-8 | | -2+a/2=0 | | -6+a/2=0 | | 40,000x+560000=200000 | | 3p-5=-5 | | -2+x/6=-1 | | .018x=34.2 | | 30-4x=66 | | -2(6t-3)+3t=t-4 | | 5/2a=-50 | | 12+-4(t-5)=-4 | | 6/10=85/x | | 4x+5=4(x+4)−11 | | -(5z-8)=0 | | -3x^2-6+4x+13x^2-12x=0 | | 3x^2-6+4x+13x^2-12x=0 | | 5z-8=0 | | -3x^2-6+4x+13x^2-12x=2 | | 7(x-6)=41 | | 9.6+m=‐0.4 | | |3y−1|=0 | | ||3y−1||=0 | | X+6x/100=160 | | -6(9x-9)+3x=-10(-12+4x) | | 4(x-15)=-36 | | X+0.06(x)=160 | | -7(v-1)=-11(v-9) |

Equations solver categories