9x+9=16x^2

Simple and best practice solution for 9x+9=16x^2 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 9x+9=16x^2 equation:


Simplifying
9x + 9 = 16x2

Reorder the terms:
9 + 9x = 16x2

Solving
9 + 9x = 16x2

Solving for variable 'x'.

Combine like terms: 16x2 + -16x2 = 0
9 + 9x + -16x2 = 0

Begin completing the square.  Divide all terms by
-16 the coefficient of the squared term: 

Divide each side by '-16'.
-0.5625 + -0.5625x + x2 = 0

Move the constant term to the right:

Add '0.5625' to each side of the equation.
-0.5625 + -0.5625x + 0.5625 + x2 = 0 + 0.5625

Reorder the terms:
-0.5625 + 0.5625 + -0.5625x + x2 = 0 + 0.5625

Combine like terms: -0.5625 + 0.5625 = 0.0000
0.0000 + -0.5625x + x2 = 0 + 0.5625
-0.5625x + x2 = 0 + 0.5625

Combine like terms: 0 + 0.5625 = 0.5625
-0.5625x + x2 = 0.5625

The x term is -0.5625x.  Take half its coefficient (-0.28125).
Square it (0.0791015625) and add it to both sides.

Add '0.0791015625' to each side of the equation.
-0.5625x + 0.0791015625 + x2 = 0.5625 + 0.0791015625

Reorder the terms:
0.0791015625 + -0.5625x + x2 = 0.5625 + 0.0791015625

Combine like terms: 0.5625 + 0.0791015625 = 0.6416015625
0.0791015625 + -0.5625x + x2 = 0.6416015625

Factor a perfect square on the left side:
(x + -0.28125)(x + -0.28125) = 0.6416015625

Calculate the square root of the right side: 0.801000351

Break this problem into two subproblems by setting 
(x + -0.28125) equal to 0.801000351 and -0.801000351.

Subproblem 1

x + -0.28125 = 0.801000351 Simplifying x + -0.28125 = 0.801000351 Reorder the terms: -0.28125 + x = 0.801000351 Solving -0.28125 + x = 0.801000351 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.28125' to each side of the equation. -0.28125 + 0.28125 + x = 0.801000351 + 0.28125 Combine like terms: -0.28125 + 0.28125 = 0.00000 0.00000 + x = 0.801000351 + 0.28125 x = 0.801000351 + 0.28125 Combine like terms: 0.801000351 + 0.28125 = 1.082250351 x = 1.082250351 Simplifying x = 1.082250351

Subproblem 2

x + -0.28125 = -0.801000351 Simplifying x + -0.28125 = -0.801000351 Reorder the terms: -0.28125 + x = -0.801000351 Solving -0.28125 + x = -0.801000351 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.28125' to each side of the equation. -0.28125 + 0.28125 + x = -0.801000351 + 0.28125 Combine like terms: -0.28125 + 0.28125 = 0.00000 0.00000 + x = -0.801000351 + 0.28125 x = -0.801000351 + 0.28125 Combine like terms: -0.801000351 + 0.28125 = -0.519750351 x = -0.519750351 Simplifying x = -0.519750351

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.082250351, -0.519750351}

See similar equations:

| s^2+24s-50=0 | | a+2=a | | x*9+23=x*4+123 | | 11x-7=59 | | f(x)=sinx+2cosx+4x | | -2+2X=-6+2X | | 5*(x-1)+4=2*(x+3)-1 | | (x^2+3x+2)(x^2+7x+12)=24 | | 57-5x=12-10x | | x^2+3x-3=4 | | 4x-28=28-3x | | 7m-30=40 | | (x+10)(x+12)(x+15)(x+18)=2x^2 | | y=3cos(3x-1) | | (3-2)x+6=5x(2x+5) | | 42x+9(3)=16(7)+6x | | 2x+11=-38-5x | | 3(1+x)=6(x+2)-2(x-1) | | 1+0+1=1+90+26 | | 1+0+1=1 | | 1+0+1= | | 3x+32=13x-40 | | x^2+6x=2x^2-x-18 | | 3x^4-13x+25X=2 | | f(3x-2)=5x^3+3x^2+7 | | 16k+8=8k+12 | | -4x+32=-24-18x | | (2x^2+y)dx+((x^2)y-x)dy=0 | | x^2=9+6x | | f(x)=4x^5-2x^4+2 | | (2x-y)dx-(x+6y)dy=0 | | 26.6=3-8c |

Equations solver categories