If it's not what You are looking for type in the equation solver your own equation and let us solve it.
3x(2x+5)-4=0
We multiply parentheses
6x^2+15x-4=0
a = 6; b = 15; c = -4;
Δ = b2-4ac
Δ = 152-4·6·(-4)
Δ = 321
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{-(15)-\sqrt{321}}{2*6}=\frac{-15-\sqrt{321}}{12} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(15)+\sqrt{321}}{2*6}=\frac{-15+\sqrt{321}}{12} $
| 1+5x=-13+4x+3x | | 7(2-5n)+3=17-3n | | x^2=0.5x+0.06=0 | | -3+2(3k-5)=-19+6k | | -25+k=-2(5-2k) | | 4(5k+5)=10(2k+5) | | 7/10c-18-1/2c=-16 | | 2h+18=6 | | 3.8y+5.6-2=2.7 | | 3.8t+5.6t-3=2.7 | | -3x=3/4-7 | | -3x=-3/4-7 | | 3/4h+6=10 | | x^2-3x-78=0 | | 7u-2/3=-1/3u-2/5 | | x^2-3x-78.75=0 | | x=4/5*(x+10) | | 9x+10=-89 | | 9x-10=-89 | | 5x+13=-62 | | 6.d=9 | | 2x+24=-74 | | -4x-2=+18 | | 10x+12=-88 | | 4(p+13)=108 | | a-7/3=5 | | 6(17x-2)^2+11=311 | | 7-8x=25 | | 2b+13=81 | | 112+(-2)y=85-y | | 22-2x=2x+10 | | 7x+5x-3+9=20 |