If it's not what You are looking for type in the equation solver your own equation and let us solve it.
0=15x^2+299x-10
We move all terms to the left:
0-(15x^2+299x-10)=0
We add all the numbers together, and all the variables
-(15x^2+299x-10)=0
We get rid of parentheses
-15x^2-299x+10=0
a = -15; b = -299; c = +10;
Δ = b2-4ac
Δ = -2992-4·(-15)·10
Δ = 90001
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-299)-\sqrt{90001}}{2*-15}=\frac{299-\sqrt{90001}}{-30} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-299)+\sqrt{90001}}{2*-15}=\frac{299+\sqrt{90001}}{-30} $
| 1/4x+1/5x=54 | | 35+0.5x=52 | | 9w=4w+45 | | 6x+4-5x=-8 | | 2x+-85+12x=105 | | 4b+4=5b+2 | | 9w-4w=45 | | 54=3-(14-8x) | | 4x^2=5x+3 | | -5r+5=25 | | -2x+54+38=142 | | 32/x=5 | | -2b-3=-13 | | 13x+x/2=7000 | | $65.00+x=$67.10 | | 46=-6t=13 | | 6(15)=n | | 0=30x^2+598x-20 | | q-3.6=2.3 | | 8m+1.4=4.6 | | k/6=3/18 | | -3=-5k+2 | | G=2-4a | | 1500=200+50(t-70) | | x+6=16/3 | | 10=7+3(7y+1) | | f+71=73 | | 3x^2-8x+400=0 | | 5/6x-10=1/3(x-15) | | 17+x=1/3 | | 4m-5=-1 | | a-2/3=2/3 |