If it's not what You are looking for type in the equation solver your own equation and let us solve it.
x^2+5.4x^2=7000
We move all terms to the left:
x^2+5.4x^2-(7000)=0
We add all the numbers together, and all the variables
6.4x^2-7000=0
a = 6.4; b = 0; c = -7000;
Δ = b2-4ac
Δ = 02-4·6.4·(-7000)
Δ = 179200
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}$$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$
The end solution:
$\sqrt{\Delta}=\sqrt{179200}=\sqrt{25600*7}=\sqrt{25600}*\sqrt{7}=160\sqrt{7}$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-160\sqrt{7}}{2*6.4}=\frac{0-160\sqrt{7}}{12.8} =-\frac{160\sqrt{7}}{12.8} =-\frac{40\sqrt{7}}{3.2} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+160\sqrt{7}}{2*6.4}=\frac{0+160\sqrt{7}}{12.8} =\frac{160\sqrt{7}}{12.8} =\frac{40\sqrt{7}}{3.2} $
| -34=-7x+2(x+8) | | 7v=5v+4 | | t/7+16=10 | | (7x-9)+36=90 | | 3x^-9x=-5 | | 5a+3a=15a | | 9x-10x-55=-74 | | 01x=5 | | m/35=32 | | x/5=96/40 | | 5−3g=–2g | | (4x+18)=82 | | 18s−16s+2s=4 | | x-1.5x=7.5 | | 9+9m=-45 | | 22=w+7 | | ∑15n=12n+3 | | 4x+8=-4(x+2) | | -30=-10t+-20 | | 30=6i | | -12(x-1)=-3(x-1 | | 20+s=7+20 | | |3x-5|=14 | | 47=s/4+39 | | 6x+8=15x–10 | | 10c−3c=7 | | 3(2.1b-1.2)=(0.7b+0.85) | | -75=10w+5 | | 8^(x-1)=3.4 | | -5=1/7a | | 7m^2+8m+7=0 | | -9/7x=-1 |