If it's not what You are looking for type in the equation solver your own equation and let us solve it.
2y^2+7y-15=0
a = 2; b = 7; c = -15;
Δ = b2-4ac
Δ = 72-4·2·(-15)
Δ = 169
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:$y_{1}=\frac{-b-\sqrt{\Delta}}{2a}$$y_{2}=\frac{-b+\sqrt{\Delta}}{2a}$$\sqrt{\Delta}=\sqrt{169}=13$$y_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(7)-13}{2*2}=\frac{-20}{4} =-5 $$y_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(7)+13}{2*2}=\frac{6}{4} =1+1/2 $
| 2(x+10)+3x=200 | | 2x+36-4x=-2x-14+50 | | 20/(x-3)=5 | | 2(a-3)=6a+4 | | 1/2z+2/3=1/3z-3/2 | | 7(9c-1)-4=61c+7 | | 11z–5=9z+7 | | 9(4y-6)=2(-13-2y) | | X+50+x+10+x+-30=180 | | 1/2(x-4)-7=-2x+6 | | -1+-1=x | | A=(x1-4*5) | | -5x+20=-4x+30 | | (x+15)/3=25 | | 6x+7=20806x+7=2080. | | -4(m+16)=12 | | 3X3x+1=(-2)X3x+1X2 | | 194=1/2x+(x-8) | | 3x-5+6x-14=180 | | (x+4)/4=20 | | 7/6=y+4/8 | | 16x+7=16+16x | | x-4/4=20 | | -4(2z-5)=3z-13 | | (u+5)/10=7/8 | | 2x/9+5/6=7/9 | | F(x)=525 | | (X-15)/2=3-x | | 3x+(2-x)=12 | | 3(3x+1)=-2(3x-2) | | 3+3n-5=3n-2 | | (8x)/5=2x+3 |