If it's not what You are looking for type in the equation solver your own equation and let us solve it.
x^2=3x+45
We move all terms to the left:
x^2-(3x+45)=0
We get rid of parentheses
x^2-3x-45=0
a = 1; b = -3; c = -45;
Δ = b2-4ac
Δ = -32-4·1·(-45)
Δ = 189
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}$$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$
The end solution:
$\sqrt{\Delta}=\sqrt{189}=\sqrt{9*21}=\sqrt{9}*\sqrt{21}=3\sqrt{21}$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-3)-3\sqrt{21}}{2*1}=\frac{3-3\sqrt{21}}{2} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-3)+3\sqrt{21}}{2*1}=\frac{3+3\sqrt{21}}{2} $
| 30+p=54 | | -48+18x=48 | | 4(x+3)-2x=12-(2x+5) | | 31(n)=16 | | (1+x)^1.5=1.04 | | 3(3�−10)=3(3y−10)= 66 | | 1000/x=0.2 | | b-2/2=6 | | x=9xx=63 | | X-19+88+x=180 | | b/2+4=2 | | 2x+5)+(3x-5)=180 | | b/2+6=2 | | b/2+5=24 | | -14=2t-14 | | -3n+12=-3 | | (x−15)=(3x−19) | | 3(3a+11)=4a+38 | | 5b2+41=86 | | b2-12=37 | | 4x=180(3x+5) | | 8=3/4(5x=20) | | X-10+x=74 | | 5c+11=4c+10 | | 6n-8=n+13 | | X+11+c=113 | | -x²+31x-144=0 | | -7.4=88+p | | -x²+31x+144=0 | | 3(y-10)+1=£(y-8) | | 6n-7=n+13 | | 7x+5+6=2(3+6x) |