If it's not what You are looking for type in the equation solver your own equation and let us solve it.
-7x^2+12.25x+1.75=0
a = -7; b = 12.25; c = +1.75;
Δ = b2-4ac
Δ = 12.252-4·(-7)·1.75
Δ = 199.0625
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{-(12.25)-\sqrt{199.0625}}{2*-7}=\frac{-12.25-\sqrt{199.0625}}{-14} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(12.25)+\sqrt{199.0625}}{2*-7}=\frac{-12.25+\sqrt{199.0625}}{-14} $
| -3(2n-7)4n=15 | | 9(x+4)+8=9x9 | | -1t+14=3t+10 | | k=1+3.320 | | 4x+28=13x5. | | 4p-6+2p+2=10-p | | 0.2(15−5t)=30t−15 | | 2/3(6a+9)=16.2 | | −9w=76.5−9w=76.5 | | 5+j=8.2 | | -6j=19.2 | | 8(3x-3)=24 | | -0.1³+0.6x²+85=70 | | –4(–4w–18)–10w=12 | | X.x=14 | | 3|8=-1/4a | | 12x-16=64 | | 5a+10=70+2 | | 3(x−4)=8x+18 | | 3^2^x=23 | | -2(7x-2)=94 | | 4x2^+4x-42=6 | | 4z=35.1* | | 4x−6.1=2x−5.9 | | -4(4y-4)=80 | | 14t-0.4(t-3.1)=5.8 | | 3+x^2=100 | | 8^(2x)-1=16^(2x) | | 210+.25x=350 | | –g=9−2g | | 12.7x=127; | | 3.75x+12=72 |