If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying
-9x2 + 4 = 0
Reorder the terms:
4 + -9x2 = 0
Solving
4 + -9x2 = 0
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-4' to each side of the equation.
4 + -4 + -9x2 = 0 + -4
Combine like terms: 4 + -4 = 0
0 + -9x2 = 0 + -4
-9x2 = 0 + -4
Combine like terms: 0 + -4 = -4
-9x2 = -4
Divide each side by '-9'.
x2 = 0.4444444444
Simplifying
x2 = 0.4444444444
Take the square root of each side:
x = {-0.666666667, 0.666666667}
| 3(a-7)=2(2-a) | | y-13=-6 | | 4-3(x+1)=-38 | | 3(x-3)(x-3)=24 | | p^2-2p-15=0 | | 10x-2=8x | | 3m^2+2m+1=0 | | -7=3(t-5)t | | 4(x-9)=2x-40 | | 5n+7(-6-n)=4(n+3) | | x^2+20x-384=0 | | -3-4t+8=-5t+14 | | 7(1-5n)-(n+3)=4 | | 4x+1=3x-3 | | 8x*4x= | | -(2+2m)-2=6 | | 0=n-1+6 | | x^2-50=4x | | 4x(-5+3)=17 | | 0=7v-6v | | 5z+2=z-5 | | 9x^3+x^2+-81x-9=0 | | 14x-2x*-2x=y*y+4y | | 6=-12+-7h | | 14x-2x*2x=y*y+4y | | 8(5C-2)=10(32+4C) | | 14x-2x(2)=y(2)+4y | | 14x-2x=y+4y | | 3r+1-5=3r-2 | | 8+5s=7s-2 | | sin(8x)-sin(2x)= | | 3-6n-4=17 |