If it's not what You are looking for type in the equation solver your own equation and let us solve it.
2x^2+39=57
We move all terms to the left:
2x^2+39-(57)=0
We add all the numbers together, and all the variables
2x^2-18=0
a = 2; b = 0; c = -18;
Δ = b2-4ac
Δ = 02-4·2·(-18)
Δ = 144
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}$$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$$\sqrt{\Delta}=\sqrt{144}=12$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-12}{2*2}=\frac{-12}{4} =-3 $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+12}{2*2}=\frac{12}{4} =3 $
| n/18=22/5 | | 5x+x+8=4(x+5) | | 8+2y/3=8 | | 1/2x+10=17 | | -0.65p-2=0.35 | | 8x+2-6x=3+x-10 | | 5x+x+8=4(x+5 | | 7x+12+2x+13+2x+12=180 | | 8n-2+3n=5 | | 5/n=20/16 | | -2x-10=50 | | ((x-4)(x+3))/2=39 | | 55h=275 | | 11+x+2=11+x+2 | | -22=-4x-2x-10 | | 8+6n=4 | | -3x+1+5x=11 | | -5x+x=-8+12 | | 12a+10=-2 | | 5-3(x-)=2(2-x)-8 | | 3(9x+2)=30x+6-3x | | 12a-10=-2 | | 6/3=3t/3 | | 56.4w=7.6 | | 12w+14=80 | | 10/2=n/3 | | –5(4x+3)=-5x–5 -15x–10 | | 19-9=x+29 | | 3(4v+1)=51 | | 2k^2=-10 | | 16/20=y/90 | | 7x-4=2x+16+2x-2 |