If it's not what You are looking for type in the equation solver your own equation and let us solve it.
5x^2+5x-1=-2
We move all terms to the left:
5x^2+5x-1-(-2)=0
We add all the numbers together, and all the variables
5x^2+5x+1=0
a = 5; b = 5; c = +1;
Δ = b2-4ac
Δ = 52-4·5·1
Δ = 5
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{-(5)-\sqrt{5}}{2*5}=\frac{-5-\sqrt{5}}{10} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(5)+\sqrt{5}}{2*5}=\frac{-5+\sqrt{5}}{10} $
| 5x^2-25x+10=-21 | | 5x^2-25x+10=-25 | | 5x^2-25x+10=50 | | X*3x=897 | | (3)/(2x)-(1)/(2(x+10))=1 | | 15)y-4-5=y+1-3 | | 2^n=40 | | 65x+260=325 | | 9×2+9y2-6×-36y-107=0 | | 20=y+−50 | | 160*3j=10,880 | | 8e+3{5-e}=10 | | 14)4x+6=8x+ | | (0.5x+3.2)=(0.5x)+2(0.5x)(3.2)+(3.2) | | 14)4x+6=8x+(-6) | | 160x3x=10,880 | | -21x^2-132x+115=0 | | (3/4)x+(1/4)x=19 | | 2=3x5 | | x+4.16=7.48 | | y-7.38=2.58 | | 10c=103 | | u+1.3=9.18 | | 5x^2-25x+10=100 | | 10×+20y=50 | | E=58h | | 96=8(u+2) | | 1=w/3-6 | | -5(-3y+4)=25 | | 5(x-3)-8x+3=9 | | 15=3(b-95) | | y-24=99 |