If it's not what You are looking for type in the equation solver your own equation and let us solve it.
5b^2-30b+45=0
a = 5; b = -30; c = +45;
Δ = b2-4ac
Δ = -302-4·5·45
Δ = 0
Delta is equal to zero, so there is only one solution to the equation
Stosujemy wzór:$b=\frac{-b}{2a}=\frac{30}{10}=3$
| 4x^2-49/64=0 | | 2x+8/4-6=4 | | 2(n+5)=9(n+2/3) | | 2.3x+5+1.7x=15+4x-10 | | v/4+9=13 | | 2(n+6)=3(n-3) | | 4=-6+y/5 | | 2x^2-20+50=0 | | 15=2(x-1)-x | | -6=2u+8 | | 8(-7=6v)=296 | | X+11/3x+11/3x-1=43 | | 2x2=6x-1 | | 3(2x-9)=411 | | 3(3x-9)=411 | | 2-y+1=5 | | x/3+15=28 | | 5(3x-4)=1420 | | 5(2x-4)=1420 | | 10x+5=7=90 | | 2(2x-4)=480 | | 2x-20+50=0 | | 29=v/4-11 | | 2(1x-4)=369 | | x^2-x-6=0x2−x−6=0, | | 3x-4=-5x-12 | | 8+2x=40+x | | 3(2x-4)=324 | | 3x=-2x+14/4 | | 60=4(3x-3) | | 1/6x-3=13 | | 11y=2y+45 |