If it's not what You are looking for type in the equation solver your own equation and let us solve it.
=7.5Y+2.5Y^2
We move all terms to the left:
-(7.5Y+2.5Y^2)=0
We get rid of parentheses
-2.5Y^2-7.5Y=0
a = -2.5; b = -7.5; c = 0;
Δ = b2-4ac
Δ = -7.52-4·(-2.5)·0
Δ = 56.25
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{-(-7.5)-\sqrt{56.25}}{2*-2.5}=\frac{7.5-\sqrt{56.25}}{-5} $$Y_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-7.5)+\sqrt{56.25}}{2*-2.5}=\frac{7.5+\sqrt{56.25}}{-5} $
| 11+5y=3+-4 | | 8w+4=3(w-2) | | (3)(-x)-(-x)(6)=-9 | | N-5=-8n+13 | | 2x×1=5 | | 25-17=2(x-5) | | (X)(-2)+(8)(x)=60 | | -2=4(X-6)+8x | | 5n/3+7n/2=3n-24/6 | | r^2-2=0 | | -3/4x+9=5/2x-17 | | 4x=9-2 | | X-5-2=-2+x | | -5(x+1)-12=10+8 | | 4^x=35 | | 8-5x=2x-4-x | | 3^(x-1)=24 | | 2x^2+42x+216=0 | | 2+x-(x+1)=7+4x+(x-1) | | 120+h+315=T+24 | | P/3w=5/6 | | 16/10=x/5 | | 3(y-68)=42 | | 5/6=x-2/9 | | 15=24-3v | | 6x^2+25x=0 | | 16-4t=84 | | 3x=180-60 | | -18d=10-19d | | -3+7y=6y | | 1/5x6=13 | | (-8h)-12=-7h |