If it's not what You are looking for type in the equation solver your own equation and let us solve it.
x(2)-5x-84=0
We add all the numbers together, and all the variables
x^2-5x-84=0
a = 1; b = -5; c = -84;
Δ = b2-4ac
Δ = -52-4·1·(-84)
Δ = 361
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{361}=19$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-5)-19}{2*1}=\frac{-14}{2} =-7 $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-5)+19}{2*1}=\frac{24}{2} =12 $
| 5d+21=-64 | | 8f+24=72 | | -3x-1^(2)-5x=9x | | -45^(2)+15^(2)=10x | | -6k+534=-60 | | 9^2+18x=0 | | 10^2=-4x | | 8x+5=4x+6 | | 3x=33.94 | | 0.5^x=1.45 | | 7z+12-3z=-5 | | 28^(2)=36x | | 8(4k-4))=-5k-32 | | 89.7x=-2296.36 | | 12=-4x-(-28) | | 6/3x+12/2x=1 | | -20=8d+12 | | 7n/8-5=6 | | 2(x-3)+3(2x-4)=(4x+1)-3(4x-1) | | 5^(2x)=80 | | x-6/7+8=-1 | | 3x+4x+5x+7=88 | | -9x/2=-27 | | x+1/3+2=7 | | 3|x=14|45 | | 2x-4(5x+2)=-44 | | 6u=27+3u | | 6u=27+2u | | 2x+50=2x100 | | 2m+4-3m=8(m11) | | 100=35+0.45x | | (w+3)(w+2)=0 |