If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying
x2 + 2x2 + -125 = 0
Reorder the terms:
-125 + x2 + 2x2 = 0
Combine like terms: x2 + 2x2 = 3x2
-125 + 3x2 = 0
Solving
-125 + 3x2 = 0
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '125' to each side of the equation.
-125 + 125 + 3x2 = 0 + 125
Combine like terms: -125 + 125 = 0
0 + 3x2 = 0 + 125
3x2 = 0 + 125
Combine like terms: 0 + 125 = 125
3x2 = 125
Divide each side by '3'.
x2 = 41.66666667
Simplifying
x2 = 41.66666667
Take the square root of each side:
x = {-6.454972244, 6.454972244}
| 4x^2-40x+45=0 | | 23x-12= | | 0.8x+20-4.5=5+x-0.9x | | 7a+5a=4(a-8)+12(a+9) | | 2(4x-1)+1=20 | | 2n-2=n-8 | | X^2+12x+y^2+4y=60 | | 7y+8=68 | | 6x=333334y | | 10x-7x=84 | | 7y+x=-20 | | 5h+7=3(2h-1) | | X+7y=-20 | | k/2+1=k/3-1 | | x+35+35=180 | | -8=y-6 | | 8(n-3)-(2-n)= | | 5[h+2]=3[j-1] | | 3x(X+1)-3x= | | -9+w=-7 | | 4x+-9+-9y=6 | | -9=u+9 | | .5(100+A)=50 | | x(-53-15x)=0 | | 6+2(3e-1)= | | 29=-2(4x-5)+3(3x+6) | | 2-12x+6=0 | | 4x-7=2b+X | | 12p-7=8p+9 | | 16=2y-12 | | 11x-3=5x+5 | | 2g-3-3G-5=1 |