If it's not what You are looking for type in the equation solver your own equation and let us solve it.
3x^2+4x-7=13
We move all terms to the left:
3x^2+4x-7-(13)=0
We add all the numbers together, and all the variables
3x^2+4x-20=0
a = 3; b = 4; c = -20;
Δ = b2-4ac
Δ = 42-4·3·(-20)
Δ = 256
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{256}=16$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(4)-16}{2*3}=\frac{-20}{6} =-3+1/3 $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(4)+16}{2*3}=\frac{12}{6} =2 $
| -3(4x-2)=4x-10 | | 1/4x+13=13 | | -3(4×-2)=4x-10 | | 0.8x=x-0.4 | | 43x+12=32x-76 | | 2m-13=-8m+m | | 2(x+13)-10=25 | | p/13=29=34 | | 4/3x+1/2=3/2x-7/6 | | 2p+24=25p-36 | | 38x+27=65 | | 4.3x+12=32x-76 | | -1.0477x^2+38.9047x-349.8572=0 | | 3(2m+1)=27×9 | | (6x+40°)=(8x+20°) | | 5^3x-1÷25=125 | | 3/(4m+9)=21 | | -3(-1x+30)=-2-6x+18x | | .3x^2=400 | | 4/3v+25=34 | | 8(v+2)+47v=55v+6-7 | | -7(x+7)+6=-90 | | -1.25(x-3)+0.25(x+6)=x-18.75 | | x^2+5x-0.9=0 | | 0.8x-2=-0.4x+17 | | 312+12=36x | | 81^x=9/3^x | | X-3/2=d | | 2x+3/x+7=5/8 | | 2x^2/3-5=18 | | 2^6n*8=32^n+3 | | (n/(-2))+1=15 |