If it's not what You are looking for type in the equation solver your own equation and let us solve it.
2z^2+z+2=3
We move all terms to the left:
2z^2+z+2-(3)=0
We add all the numbers together, and all the variables
2z^2+z-1=0
a = 2; b = 1; c = -1;
Δ = b2-4ac
Δ = 12-4·2·(-1)
Δ = 9
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:$z_{1}=\frac{-b-\sqrt{\Delta}}{2a}$$z_{2}=\frac{-b+\sqrt{\Delta}}{2a}$$\sqrt{\Delta}=\sqrt{9}=3$$z_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(1)-3}{2*2}=\frac{-4}{4} =-1 $$z_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(1)+3}{2*2}=\frac{2}{4} =1/2 $
| 0.01x^2-0.02x-0.01=0 | | 5a-12=2a+27 | | 2/3|5-2w|-1/2=5 | | 8x-20=5x+37 | | 4x-7(-4+15)=119 | | 25x^2+105x=0 | | -s=9.5 | | 3z2+17z-6=0 | | 181=8(-6x-8)-x | | 8x+22x-8=6(5x+9) | | 6(x-5)+10=4(x+0) | | 4a-7=1a+11 | | 16w+11=4 | | 210000=1000x+1200(x+20) | | 0=-1x+2 | | 13.67-13.9t=-15.6t-10.98 | | 4p=-12.96 | | 12=8(6d-10) | | Y+7=5x/4(x+16) | | 6(-2n+3)=-8n-6(-3-2n) | | -8+12x=-8(-10x-7)-8(8x+4) | | 7x+8x-5=3(5x+4) | | 6y+3=6y+9 | | 5x-4-7=-3x+4x+7 | | 5-4b=5-4b | | -210+10x=112-4x | | -19.98+1.3j=-9.8j | | -1.3=11.2+w/5 | | -4/8+a=5/8 | | 8-2(r+4)=-2r-2(2r-6) | | 33-c=69+c | | 11u+5=10u+15 |