If it's not what You are looking for type in the equation solver your own equation and let us solve it.
4x^2-7x+38=0
a = 4; b = -7; c = +38;
Δ = b2-4ac
Δ = -72-4·4·38
Δ = -559
Delta is less than zero, so there is no solution for the equation
| 2x+49+x+38=90 | | 32+6x+40=90 | | 11x-65=45 | | 30+3x+48=90 | | 5x−(x−7)=2x−(+x) | | -10x+95=45 | | x-54+x-28=90 | | 12x+54=90 | | 3^x=2x+1 | | 63/15d=-5 | | -438=-7(5-8x) | | 11x+19x=90 | | 7x+9-10x=18 | | 12x+110=6(x+100) | | 3(4x+2)=-5(3x+4)+2x | | 3/2x+8=-10 | | 9x-31/2+5=3x | | 4(5x+3)=-3(5x-5) | | -33-7x=-12x+2 | | 30x+540(x+16)=20610 | | 9v+7=77-v | | 16k+3=20k-13 | | 540x+30(x-16)=20610 | | (13x+7)(6x-7)=0 | | 540x+30(x-510)=20610 | | 30x+540(x+510)=20610 | | -2x+8.9=-17.1 | | 4n+6n-5=5n+6 | | 4n+7n-5=5n+6 | | -2x+6=-8.7 | | -9x-6.8=8.7 | | 5x8.3=28.3 |