65=((x-3)x)/2

Simple and best practice solution for 65=((x-3)x)/2 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 65=((x-3)x)/2 equation: 



65=((x-3)x)/2

We move all terms to the left:

65-(((x-3)x)/2)=0

We multiply all the terms by the denominator


-(((x-3)x)+65*2)=0



We calculate terms in parentheses: -(((x-3)x)+65*2), so:

((x-3)x)+65*2

We add all the numbers together, and all the variables

((x-3)x)+130



We calculate terms in parentheses: +((x-3)x), so:

(x-3)x

We multiply parentheses

x^2-3x

Back to the equation:

+(x^2-3x)



We get rid of parentheses

x^2-3x+130

Back to the equation:

-(x^2-3x+130)



We get rid of parentheses

-x^2+3x-130=0

We add all the numbers together, and all the variables

-1x^2+3x-130=0

a = -1; b = 3; c = -130;
Δ = b2-4ac
Δ = 32-4·(-1)·(-130)
Δ = -511
Delta is less than zero, so there is no solution for the equation

See similar equations:

| 8z2–32=0 | | -0.96j=0.72 | | u2+24=40 | | 8n2=72 | | 8k+6.5=k+15 | | 6x(x−1)=40−5x | | d2–36=0 | | 6y^2-y-51=0 | | 2+1.25s=10-2.75s | | x+(x*0.2)=6.75 | | 49r2=100 | | 3y^2-y-51=0 | | X+2x+x-6=38 | | 18x-15x-45=10x+10 | | 9u2=49 | | x2+11=0 | | y+20y=18 | | -19x+8=7x-13 | | 81t2+51=87 | | x^2-3x=65 | | 3.36=b+5.12 | | 15k+9.5=k+13 | | 5t^2-33t-56=0 | | 3.36=b+5.12= | | w2=64 | | 0.9(x+1.4)-2.3+0.1x=5 | | -33t+5t^2-56=0 | | y4−20y2+64=0 | | x+(x+70)=90 | | -1/3x+4=-4x+12 | | 15-10x=5x | | k2–25=0 |

Equations solver categories