If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying
4x2 + 12 = 688
Reorder the terms:
12 + 4x2 = 688
Solving
12 + 4x2 = 688
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-12' to each side of the equation.
12 + -12 + 4x2 = 688 + -12
Combine like terms: 12 + -12 = 0
0 + 4x2 = 688 + -12
4x2 = 688 + -12
Combine like terms: 688 + -12 = 676
4x2 = 676
Divide each side by '4'.
x2 = 169
Simplifying
x2 = 169
Take the square root of each side:
x = {-13, 13}
| 3(2-x)=2(3x-6) | | y/9=-16 | | -3(-2)+y=1 | | 2n+8=n+12 | | -13-10Y= | | 4+2[3-5(x+4)+2x]-7x=8(9-x)+3 | | 3x^2-8=-200 | | 13x-14(2x-5)=15 | | 2(3)+y=2 | | Fd=c | | 4-2x+4=1 | | -2.9x=42.34 | | -3f+7.569=24.069 | | 4x=6*4 | | 25a-30=0 | | 3x-2(2x-5)-2(x+2)=-21 | | 7(6x+9)=567 | | 5x+14=2(2x+7) | | 6x+10=4x-6 | | -5(0)= | | 8x+5y=-10 | | 4+12y-3=9y+49-3y | | -1.3-3z-3.1-z=-3z+3.1 | | -1(-1+8)(-1+2)=0 | | 5.8+3.7=29.8 | | -5(4+4x)=-260 | | x^2-x+11=1 | | -3(-3+8)(-3+2)=0 | | 5(1x-3)=0 | | 9(4-3j)= | | 23-11c=5c | | 176=11r |