If it's not what You are looking for type in the equation solver your own equation and let us solve it.
2u^2-13u-15=0
a = 2; b = -13; c = -15;
Δ = b2-4ac
Δ = -132-4·2·(-15)
Δ = 289
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:$u_{1}=\frac{-b-\sqrt{\Delta}}{2a}$$u_{2}=\frac{-b+\sqrt{\Delta}}{2a}$$\sqrt{\Delta}=\sqrt{289}=17$$u_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-13)-17}{2*2}=\frac{-4}{4} =-1 $$u_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-13)+17}{2*2}=\frac{30}{4} =7+1/2 $
| -15x-10=-12x+5 | | 5(2a-1)=19 | | 0.17+0.09(14,000-x)=2000 | | 12x+10=-3-10 | | 13+3-8x=8 | | 5a(a+4)=# | | 4x~32=0 | | 10q^2+23q=0 | | 1/6=3+x | | 8x+3=4x-14 | | 12b-9=2b-b=-87 | | 3v^2+26v-9=0 | | 3x^+42x+147=0 | | (D²-2D+4)y=0 | | 180=(x+4)+(7x) | | 4/5m-4=-9/10m+1 | | 3^2x+2-5(3^x)=0 | | 13-4x=(-11) | | 1/2x+2=5/2x | | 2n÷11+8=10 | | 2x+8=(-4) | | 3x+2=(-55) | | 7x+2(5x+5)=-7 | | x/2-12=(-14) | | 200m-75m+57,600=60,300-175 | | 3x^2=23x=14 | | n÷11-7=5 | | 12=x-40 | | -3x+33=(-12) | | 3/5p=7/2 | | 52=80-x | | n^2−9n+18=0 |