4x^2+9x+9=10

Simple and best practice solution for 4x^2+9x+9=10 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 4x^2+9x+9=10 equation:


Simplifying
4x2 + 9x + 9 = 10

Reorder the terms:
9 + 9x + 4x2 = 10

Solving
9 + 9x + 4x2 = 10

Solving for variable 'x'.

Reorder the terms:
9 + -10 + 9x + 4x2 = 10 + -10

Combine like terms: 9 + -10 = -1
-1 + 9x + 4x2 = 10 + -10

Combine like terms: 10 + -10 = 0
-1 + 9x + 4x2 = 0

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

Divide each side by '4'.
-0.25 + 2.25x + x2 = 0

Move the constant term to the right:

Add '0.25' to each side of the equation.
-0.25 + 2.25x + 0.25 + x2 = 0 + 0.25

Reorder the terms:
-0.25 + 0.25 + 2.25x + x2 = 0 + 0.25

Combine like terms: -0.25 + 0.25 = 0.00
0.00 + 2.25x + x2 = 0 + 0.25
2.25x + x2 = 0 + 0.25

Combine like terms: 0 + 0.25 = 0.25
2.25x + x2 = 0.25

The x term is 2.25x.  Take half its coefficient (1.125).
Square it (1.265625) and add it to both sides.

Add '1.265625' to each side of the equation.
2.25x + 1.265625 + x2 = 0.25 + 1.265625

Reorder the terms:
1.265625 + 2.25x + x2 = 0.25 + 1.265625

Combine like terms: 0.25 + 1.265625 = 1.515625
1.265625 + 2.25x + x2 = 1.515625

Factor a perfect square on the left side:
(x + 1.125)(x + 1.125) = 1.515625

Calculate the square root of the right side: 1.231107225

Break this problem into two subproblems by setting 
(x + 1.125) equal to 1.231107225 and -1.231107225.

Subproblem 1

x + 1.125 = 1.231107225 Simplifying x + 1.125 = 1.231107225 Reorder the terms: 1.125 + x = 1.231107225 Solving 1.125 + x = 1.231107225 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.125' to each side of the equation. 1.125 + -1.125 + x = 1.231107225 + -1.125 Combine like terms: 1.125 + -1.125 = 0.000 0.000 + x = 1.231107225 + -1.125 x = 1.231107225 + -1.125 Combine like terms: 1.231107225 + -1.125 = 0.106107225 x = 0.106107225 Simplifying x = 0.106107225

Subproblem 2

x + 1.125 = -1.231107225 Simplifying x + 1.125 = -1.231107225 Reorder the terms: 1.125 + x = -1.231107225 Solving 1.125 + x = -1.231107225 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.125' to each side of the equation. 1.125 + -1.125 + x = -1.231107225 + -1.125 Combine like terms: 1.125 + -1.125 = 0.000 0.000 + x = -1.231107225 + -1.125 x = -1.231107225 + -1.125 Combine like terms: -1.231107225 + -1.125 = -2.356107225 x = -2.356107225 Simplifying x = -2.356107225

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.106107225, -2.356107225}

See similar equations:

| 4n-2(n+1)=2n-14 | | -11=4n-7n | | (3/10X)=(x/x-1)-4/5 | | -3(2d-10)+8=62 | | 4u^2-20u+25= | | -9x+5y=10 | | 4n-10=47 | | 9(x-6)=4(x+49) | | 1/3x-8/12=-2-x/15 | | 5+.50x=10x | | 12w+12-21w-4=98 | | 48=w+2*w*2 | | (2x+10)(x-9)=0 | | x^2-7x-14=-3x-2 | | 4(g+3)=32 | | 9/6-x/8 | | 2x+5/2=3x-2/6 | | 7-2x/6=x-5/1 | | 2/x*3/2x-5 | | .5x+6/3=x-3/2 | | -9+3x=x-6+8 | | 7(x/4)=105 | | x(12x+2)=(10x)(x+1) | | 5z^2-125=0 | | .75(x-8)=7.5 | | 99999999999999=5x+54t | | -12+2x+4(3+3x)=-10+18x | | 4(3x-6)+10=10x+18 | | (14x-15)=(6x+49) | | Y/3/4=15 | | k-9=5(k-3)findk | | x^2-16x-13=-6x-2 |

Equations solver categories