If it's not what You are looking for type in the equation solver your own equation and let us solve it.
2x^2+7x-15=-3
We move all terms to the left:
2x^2+7x-15-(-3)=0
We add all the numbers together, and all the variables
2x^2+7x-12=0
a = 2; b = 7; c = -12;
Δ = b2-4ac
Δ = 72-4·2·(-12)
Δ = 145
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{-(7)-\sqrt{145}}{2*2}=\frac{-7-\sqrt{145}}{4} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(7)+\sqrt{145}}{2*2}=\frac{-7+\sqrt{145}}{4} $
| 45x+105=780 | | (x-20)x=180 | | 7^3x+12=50 | | 6x+4+6x+4=4x+16 | | 7(p+9)=-29 | | 3(x+4)=5x-(x-27) | | −4(1.5x−.5)=−15 | | 4x+22=2x-46 | | m=20+9 | | 3x-18=38 | | 4/3x+2=22 | | p^2−22=3 | | 42*x=x*42=42 | | h3−-2=5 | | 2p+1/3(6p-9)=2(p+1) | | h3− -2=5 | | 5366(4567-x)-1324=163x+765 | | 4(p-6)+6p=64 | | 5366(4567-x)-1324=163x+765(776+x) | | 3x-2+6x-4+2x+8+4x+14=180 | | 0.06x=4,713 | | F(x)=2*x^2-4.5*x^2+x+10.5 | | 90-(12/13)=x | | 3+2(6-5a)=65 | | 40=9x=5 | | 3/4x-3.2=5.3-2x/3. | | 15x+21=83 | | 5(2+6b)=-140 | | 5(2+6b)=140 | | 7x*20=7x*12+16 | | 5(4r+3)=75 | | 50k+70=40+100 |