If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying
4x2 + 7 = 18
Reorder the terms:
7 + 4x2 = 18
Solving
7 + 4x2 = 18
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-7' to each side of the equation.
7 + -7 + 4x2 = 18 + -7
Combine like terms: 7 + -7 = 0
0 + 4x2 = 18 + -7
4x2 = 18 + -7
Combine like terms: 18 + -7 = 11
4x2 = 11
Divide each side by '4'.
x2 = 2.75
Simplifying
x2 = 2.75
Take the square root of each side:
x = {-1.658312395, 1.658312395}
| (ln25)/2 | | -19n+10=-17n-12 | | 67=5.51+4.3a | | tanx=19/11 | | 4(k)^(-2/3) | | 5ln(3x/4)=2 | | x^2-11x-3=5 | | -9.87x-18.13x= | | t(t+5)-t(t-8)=3(t-8)-5(t-5) | | an-3a=5 | | 2(3.5)x=(6.2)x | | -2(x+8)=4x-6x+8 | | x/10=3/20 | | -6-5m=-21 | | 15/44 | | 4(x+30)=120 | | 12n= | | x^2-8=15 | | 1350+-1X=x | | 10z-z=-3+6z-1-2 | | X+y=80000 | | x^2+4.4x=4.16 | | 3r^3+15r^2=42r | | x=182-62 | | 4(x+3)-5x=3(3x+1)-7x | | 3x+3=23-x | | 4(x+3)-5x=3(x+1)-7x | | 30=210-4x | | 6y-2x=15 | | ln(cos(pi/2)) | | 15=210-4x | | 1/3-9/10 |