If it's not what You are looking for type in the equation solver your own equation and let us solve it.
y(y+1)=6-1
We move all terms to the left:
y(y+1)-(6-1)=0
We add all the numbers together, and all the variables
y(y+1)-5=0
We multiply parentheses
y^2+y-5=0
a = 1; b = 1; c = -5;
Δ = b2-4ac
Δ = 12-4·1·(-5)
Δ = 21
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:$y_{1}=\frac{-b-\sqrt{\Delta}}{2a}$$y_{2}=\frac{-b+\sqrt{\Delta}}{2a}$$y_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(1)-\sqrt{21}}{2*1}=\frac{-1-\sqrt{21}}{2} $$y_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(1)+\sqrt{21}}{2*1}=\frac{-1+\sqrt{21}}{2} $
| 43x-2=26X+1 | | 18-8w+20=-17w-16 | | 3-2x=27+10x | | 4x=2.8(3+x) | | H(2)=x^2-5x+7 | | 50=2(4w)+2w | | 40-x=50➗2 | | 6(x+9)−5(x+6)=19 | | 18x2=12x | | 5+5(x+4)=15 | | -2(-6y+5)-3y=3(y-5)-5 | | 2=(1.06)^t | | 6x-5(3x+7)=17+2(x-4 | | -3(w+1)=3w-9+5(2w+4) | | 25t=5{5t+1} | | -9x+4=139 | | 40-x=50-2 | | -3(w+1)=3w-9+5(2w+4 | | 3x+2.5=5.05 | | 4+2(6u-7)=-2(2u-2)+8u | | 10(x+6)=10x-60 | | 2x-22=x+21 | | 3x-12=2(4-x) | | m÷20-7=-8 | | 7x-3(x-1)=4x+6 | | 12=-3n+9 | | -5u+49=-9(u-5) | | 30=3k+9 | | 2c-20=2.50c | | 12x+5=7x+60 | | -3(3y-2)+5y=4(y+5) | | 105q=114q |