If it's not what You are looking for type in the equation solver your own equation and let us solve it.
5x^2=65
We move all terms to the left:
5x^2-(65)=0
a = 5; b = 0; c = -65;
Δ = b2-4ac
Δ = 02-4·5·(-65)
Δ = 1300
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}$$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$
The end solution:
$\sqrt{\Delta}=\sqrt{1300}=\sqrt{100*13}=\sqrt{100}*\sqrt{13}=10\sqrt{13}$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-10\sqrt{13}}{2*5}=\frac{0-10\sqrt{13}}{10} =-\frac{10\sqrt{13}}{10} =-\sqrt{13} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+10\sqrt{13}}{2*5}=\frac{0+10\sqrt{13}}{10} =\frac{10\sqrt{13}}{10} =\sqrt{13} $
| X²-x-1806=0 | | (3,x)(5,-4)=7 | | 3-(2×a)=45 | | 4/7x+112=8 | | x/11=12/8 | | 10/6x-62=0 | | 40x+125=12 | | 14x-8x=13+4 | | 5x-45+54=0 | | 8x+4/2=0 | | 11x=4(x-28) | | 2(2x+)=5-2x | | 3X+23=13-5y | | 3(x8)=-33 | | -84=-4(1-4k) | | -152=8(-3+2x) | | 18=8r+2+8r | | 5x3-3x2+5=0 | | 5x4-3x2+5=0 | | 3^xx5^2x=7 | | 9n(+5=) | | 9x–5=6–2x | | (D^5-2D^4+2D^3+4D^2-11D)y=0 | | 4c-5=c+10 | | ^2+2x-9=0 | | 3x^2−15=0 | | 3n−3=5n−2n+3+3n | | −3y=2y+25 | | 10=4y-12 | | 11=10=4y-12 | | 5x+2=19.5 | | 5x+2=43.5 |