If it's not what You are looking for type in the equation solver your own equation and let us solve it.
2n^2+-4n+7=0
We add all the numbers together, and all the variables
2n^2-4n=0
a = 2; b = -4; c = 0;
Δ = b2-4ac
Δ = -42-4·2·0
Δ = 16
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:$n_{1}=\frac{-b-\sqrt{\Delta}}{2a}$$n_{2}=\frac{-b+\sqrt{\Delta}}{2a}$$\sqrt{\Delta}=\sqrt{16}=4$$n_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-4)-4}{2*2}=\frac{0}{4} =0 $$n_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-4)+4}{2*2}=\frac{8}{4} =2 $
| x-76=170 | | 4(2x–10)=16 | | y=4(85)-15 | | 8=p/2 | | 2(405+w)=1350 | | -x+17=-(8x-3) | | 3(2×-5)=-2(3x-6 | | 3x(+4)(-6)+(-6)=5x(2-)(+4)x3 | | (x-5/14)^2=0 | | y=2(85)+10 | | -6(-8+8)=-4+4x | | 4+7=-2(y+3)+1 | | -17.2+x=15.6 | | 10x^2-26x-140=0 | | 6p+24=-6(2+5p) | | 5t+2/7=6. | | 3y^2+2y=-5 | | 1800=8.34×7.5×c | | 4/3x+2x=60 | | x-4.4=3.1 | | 0.66666666666666666666666666666667b+5=20-b | | (x/2)+(3/2)=29-2x | | 1+6n=3n+16 | | 0.6666666666666666666666666666666b+5=20-b | | 5x-3+2x=x+2x | | (X+7)+32=(3x-3) | | 17-x-8=2 | | 13-9=10x+18 | | 9.7+x=5.8 | | 5y+(3-y)-7=25 | | 3x-10-x=x-11 | | 9=6+v/2 |