If it's not what You are looking for type in the equation solver your own equation and let us solve it.
-x^2+4.5x+2=0
We add all the numbers together, and all the variables
-1x^2+4.5x+2=0
a = -1; b = 4.5; c = +2;
Δ = b2-4ac
Δ = 4.52-4·(-1)·2
Δ = 28.25
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}$$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(4.5)-\sqrt{28.25}}{2*-1}=\frac{-4.5-\sqrt{28.25}}{-2} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(4.5)+\sqrt{28.25}}{2*-1}=\frac{-4.5+\sqrt{28.25}}{-2} $
| 1/3h+7=4 | | 4.2-0.05(x-8)^2=0 | | 11/32=x/8 | | 0.2n+13=1/3n-14.5 | | 7^(2a-6)=13 | | 7^2a-6=13 | | X^3-7x^2-4x+35=0 | | 27x+13=x | | 8*2^(8*x)-12-54*2^(6*x)-9+101*2^(4*x)-6-54*2^(2*x)-3+8=0 | | .3x=600 | | 13x=5x+24° | | -x⁴-2x³+8x²+9x-14=0 | | 14k-4=-4-7k | | X^2+x+3=5x | | 2x-4=8x-1 | | 108=2n+2n+4 | | 5y+6-2y=-3 | | 7x2−112=0 | | 21+9b=6+6b | | Y+4=6x+11 | | 8x+24=21-3x | | 1000=x+x(0,05) | | -8(-3+x)=-56 | | 52°+47°+x=180° | | 3x+3=3+2x | | 0.4(0.25-x)=x | | 11=v-8 | | -75=15(p+2) | | 3n^2-5=-33 | | 5x−25=3(5−x) | | (3x-1)²=7 | | 3(2x+4)=4x+63(2x+4)=4x+6 |