2x^2-89=9

Simple and best practice solution for 2x^2-89=9 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 2x^2-89=9 equation: 


Simplifying
2x2 + -89 = 9

Reorder the terms:
-89 + 2x2 = 9

Solving
-89 + 2x2 = 9

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '89' to each side of the equation.
-89 + 89 + 2x2 = 9 + 89

Combine like terms: -89 + 89 = 0
0 + 2x2 = 9 + 89
2x2 = 9 + 89

Combine like terms: 9 + 89 = 98
2x2 = 98

Divide each side by '2'.
x2 = 49

Simplifying
x2 = 49

Take the square root of each side:
x = {-7, 7}

See similar equations:

| x^2+37=118 | | x=16-4y | | 4x^2=10.24 | | 25x-62+5x=25+5 | | 18c^2+3c-10=0 | | Y^2+8x-2y-15=0 | | 5a+8b+24c=n | | 42=8t+4(t+5) | | t^2+10t+24=0 | | -r-(-1)=o | | 5(7x-5)=10x | | 3x^2+2x+16=0 | | 30+30*0+1=x | | 6(x-3)=18 | | 3(2x-1)= | | 8(x+1)=7-2(8x+8) | | 4x-10-6x=-16 | | (16x^4)+(4x^2)-12=0 | | 149-3x=42x+19 | | 9-10x=49-45x | | -16-6x=11-9x | | 11x-5=116 | | 7x+6=76 | | 7x=6+76 | | 126-4x=14x+22 | | 9-7x=94-42x | | x+2=-6 | | -44-2x=6x+24 | | -6-4=16 | | 5t^2+3t-30=0 | | 2g-10=20 | | 2x+30=11x-51 |

Equations solver categories