If it's not what You are looking for type in the equation solver your own equation and let us solve it.
x2+5x=149
We move all terms to the left:
x2+5x-(149)=0
We add all the numbers together, and all the variables
x^2+5x-149=0
a = 1; b = 5; c = -149;
Δ = b2-4ac
Δ = 52-4·1·(-149)
Δ = 621
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}$$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$
The end solution:
$\sqrt{\Delta}=\sqrt{621}=\sqrt{9*69}=\sqrt{9}*\sqrt{69}=3\sqrt{69}$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(5)-3\sqrt{69}}{2*1}=\frac{-5-3\sqrt{69}}{2} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(5)+3\sqrt{69}}{2*1}=\frac{-5+3\sqrt{69}}{2} $
| 7^x=16807 | | 40x+50=700 | | x/3-4=7-x/3 | | -15x+5=-6 | | 12x+5x-16+7x+4=180 | | 6+8x=x-8 | | 34=u/5+4 | | 30=k+20 | | 3x+10-6x=-2(x+7) | | 1=2k+9= | | 3×16^x=2×9^2x | | 20-3x=6x+38 | | y.3y-8=1 | | 3(2x+4)=10x+5x-15 | | 4y+3=6y-29 | | 3+x/2+18=35 | | n/9=5/24 | | (5x-8)^2=110 | | 12.45+0.12(x+3)=13.20-0.15x | | n/9=524 | | 2w+3-8w+5=131 | | 5x2+43=(x−1)(5x+6) | | 6a+2(a+6=28 | | (6/7)x-8=7 | | 1/4z+1/4=3/4 | | 12=3(n-5) | | 7x2=26 | | x/0.0713=0.25 | | y/3y-8=1 | | 2(x+20+x=3(x-1)+6 | | v^2+34v=0 | | 3+6e=0 |