If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying
2x2 + 15 = 57
Reorder the terms:
15 + 2x2 = 57
Solving
15 + 2x2 = 57
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-15' to each side of the equation.
15 + -15 + 2x2 = 57 + -15
Combine like terms: 15 + -15 = 0
0 + 2x2 = 57 + -15
2x2 = 57 + -15
Combine like terms: 57 + -15 = 42
2x2 = 42
Divide each side by '2'.
x2 = 21
Simplifying
x2 = 21
Take the square root of each side:
x = {-4.582575695, 4.582575695}
| 6x-5+3x=20-2x | | 3x-5/-9=2/9 | | 4x-13=x-4 | | 5(-2x+3)+5x=27+5x+18 | | -x+1=3x-1 | | -8(y+5)=-9y | | a(2a+5)= | | f(x)=(x2-25)/(3-x) | | 1.5+4n=5.5 | | -40-7x=8x-7(8x-6) | | -1/4x=16 | | -12+7r=r+6(2r+3) | | -2+4y+2=x | | 2y(y+10)= | | 8/x=75/100 | | 2(2x-4x)+3=0 | | -2+-5y=0 | | -8(1-5b)+b=197 | | -5(3x-2)=12(-3x+2) | | 15x=13+6x | | -7x=56y | | 5r+3(r-7)=-85 | | 3k-2=16 | | x^3-55x^2-56x=0 | | 106-x=157 | | 3(-8x-4)=10-18x | | 40x^2-28x-48=0 | | 5y-7=6y-2 | | 83475897134728193074238104897586387126548782935x=743281907973289107490173298740 | | 783920758934725897342890x=x+809184390281 | | 2+y+y=1 | | s-5=25 |