If it's not what You are looking for type in the equation solver your own equation and let us solve it.
9x^2+45x-54=0
a = 9; b = 45; c = -54;
Δ = b2-4ac
Δ = 452-4·9·(-54)
Δ = 3969
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}$$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$$\sqrt{\Delta}=\sqrt{3969}=63$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(45)-63}{2*9}=\frac{-108}{18} =-6 $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(45)+63}{2*9}=\frac{18}{18} =1 $
| 26)3(2a-6)=36 | | 27=3+3/7x | | –7−8g=–5−7−8g | | 7x-12Y=842x-3Y=9 | | x−23=−13 | | -6=-7/8x-13 | | 4(x–3)–3(x+5)=17 | | (3x-2)(-10x-3)=23 | | 2x–3x=15 | | 3x+43=4 | | Y=10x-4(2) | | (9x+1)^1/3+5=3 | | 100x.10=10 | | 160+x=12x | | 6(n−74)=72 | | 3x^2+26=14 | | (P-3)/5-(2p+7)/2=-1/10 | | -0.2-1.4x=5.4 | | 6(w+8)=-2w-32 | | 540=x+(x-1)+341 | | -1.4=0.1+x/1.4 | | 4y+9=2(2y-2) | | 4v2+-8v+-140=0 | | 3x+10+3x+2=90 | | 10x-50=700 | | 3x^2-40x+33=-15 | | 2x^2-2x-5=35 | | 4x^2+25x-13=8 | | 5/4g=20 | | (n^2)^n-2n+1=0 | | -8j+14=-2(4j-7) | | -11=3(x-7)-8x |