If it's not what You are looking for type in the equation solver your own equation and let us solve it.
8370=138x-0.07x^2
We move all terms to the left:
8370-(138x-0.07x^2)=0
We get rid of parentheses
0.07x^2-138x+8370=0
a = 0.07; b = -138; c = +8370;
Δ = b2-4ac
Δ = -1382-4·0.07·8370
Δ = 16700.4
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{-(-138)-\sqrt{16700.4}}{2*0.07}=\frac{138-\sqrt{16700.4}}{0.14} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-138)+\sqrt{16700.4}}{2*0.07}=\frac{138+\sqrt{16700.4}}{0.14} $
| -5/8x+2=57/16 | | 9v+10=3^2(v)+9 | | 14+a/5=2 | | 33+m/6=-3 | | -3.2+w/7=-20.7 | | -5/8x+2=57/17 | | -5p=4-7p | | 17^2=3*x^2+4*x^2 | | 0=2+160t-16t^2 | | 3d+4-9d+2=0 | | -11x(x+3)+18=(8-3x)7 | | 10+4m=-8+-7m | | 3/4=a/4a-1 | | 4(3x+9)=-28+16 | | 6x^2-2x+36=5x^2+12x | | 64^2x=16 | | 7/8+w=1/4 | | 3.2=-0.43.2n | | −7b−14=−5b−4b | | x+4/2=10 | | 4)−7b−14=−5b−4b | | 7x+9x-9=4(4x+2) | | 20=10x+-15 | | x-0.07x-409500=75000 | | 2x+25=7x+9 | | -1-8-2u=-5u-6 | | z+18=-50 | | 10=-16t^2+30t+6 | | 31=9w-5 | | t(t+4)-1=t(t=2)+2 | | x-0.07x=75000 | | -1−8−2u=-5u−6 |