If it's not what You are looking for type in the equation solver your own equation and let us solve it.
0=x^2-5x-7
We move all terms to the left:
0-(x^2-5x-7)=0
We add all the numbers together, and all the variables
-(x^2-5x-7)=0
We get rid of parentheses
-x^2+5x+7=0
We add all the numbers together, and all the variables
-1x^2+5x+7=0
a = -1; b = 5; c = +7;
Δ = b2-4ac
Δ = 52-4·(-1)·7
Δ = 53
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{53}}{2*-1}=\frac{-5-\sqrt{53}}{-2} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(5)+\sqrt{53}}{2*-1}=\frac{-5+\sqrt{53}}{-2} $
| 24=a*12 | | m/1.2=3.1 | | 2^2x-12•2^x+32=0 | | 9(x-10)=4 | | x/–6–1=3 | | 0.5x+6.4=4.9+-0.1x | | 36=8+u/4 | | 6.5/x=2 | | 2(2c+5)=3(c+5) | | 2q-4+8q=7q-8-3q | | 6y-36=-8(y+7) | | 4x+52+8x−10=180 | | 6x-1+x+14=160 | | 0.25y=3/4(3-4) | | 14=-6x+5 | | x-3(7x+4)+3(x-1)=-335 | | x^2+22x+121=44x-x^2 | | 4x+8+2x-12=132 | | 14=-6x=5 | | 15.6=2.7x-1-0.6 | | f/6=4.5 | | 3x-10+2x=115 | | X-30+x-50=180 | | 9x+28=9x | | -22=-5v | | -8y+5(y-2)=-5 | | -3+4=-8t+9(t+4) | | 18.97=y+9 | | 8x-9=9x-16 | | -(-4(-1x+9)+3-2(7x-1)-1=0 | | -3+4=-8t=9(t=4) | | 8p+5p=60-8 |