If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying
2x2 + -17 = 81
Reorder the terms:
-17 + 2x2 = 81
Solving
-17 + 2x2 = 81
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '17' to each side of the equation.
-17 + 17 + 2x2 = 81 + 17
Combine like terms: -17 + 17 = 0
0 + 2x2 = 81 + 17
2x2 = 81 + 17
Combine like terms: 81 + 17 = 98
2x2 = 98
Divide each side by '2'.
x2 = 49
Simplifying
x2 = 49
Take the square root of each side:
x = {-7, 7}
| x-0.7x=6.3 | | 11x-4x=18 | | -31-6x=47-12x | | 11(x+1)=9(x-3) | | 2/3x-5=6 | | z/2?1=3/2 | | 4x+7(4x-17)=73 | | G-6.27=10.64 | | 7x/12x+x^2 | | -6x-42=11x+52 | | 21/2+20=62 | | -15m+7m= | | 6y(y-1)=2 | | -73-1x=67-11x | | x+148=110 | | S+21/2s+20s=62 | | 115m+9m= | | Z/6+3=4-z/6 | | x^4-16x^3+96x^2-256x+255=0 | | Q=1946+2q=84 | | 22x-16=4x+65 | | 12-4/5(n+5)=66 | | (x+6)(x+7)(x-8)=0 | | -70=5n-2(-4n-4) | | 3-21=7x-3-6x | | 8x+3x-2x=27 | | 5+4n=9-1/2n | | b+b/5-10=22/5 | | (2/3+24i)(1/6+12i) | | 4x+3x=-18.5 | | x*160=1000 | | 114=6(1-3a) |