(h+9)(h+9)=3

Simple and best practice solution for (h+9)(h+9)=3 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 (h+9)(h+9)=3 equation:


Simplifying
(h + 9)(h + 9) = 3

Reorder the terms:
(9 + h)(h + 9) = 3

Reorder the terms:
(9 + h)(9 + h) = 3

Multiply (9 + h) * (9 + h)
(9(9 + h) + h(9 + h)) = 3
((9 * 9 + h * 9) + h(9 + h)) = 3
((81 + 9h) + h(9 + h)) = 3
(81 + 9h + (9 * h + h * h)) = 3
(81 + 9h + (9h + h2)) = 3

Combine like terms: 9h + 9h = 18h
(81 + 18h + h2) = 3

Solving
81 + 18h + h2 = 3

Solving for variable 'h'.

Reorder the terms:
81 + -3 + 18h + h2 = 3 + -3

Combine like terms: 81 + -3 = 78
78 + 18h + h2 = 3 + -3

Combine like terms: 3 + -3 = 0
78 + 18h + h2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-78' to each side of the equation.
78 + 18h + -78 + h2 = 0 + -78

Reorder the terms:
78 + -78 + 18h + h2 = 0 + -78

Combine like terms: 78 + -78 = 0
0 + 18h + h2 = 0 + -78
18h + h2 = 0 + -78

Combine like terms: 0 + -78 = -78
18h + h2 = -78

The h term is 18h.  Take half its coefficient (9).
Square it (81) and add it to both sides.

Add '81' to each side of the equation.
18h + 81 + h2 = -78 + 81

Reorder the terms:
81 + 18h + h2 = -78 + 81

Combine like terms: -78 + 81 = 3
81 + 18h + h2 = 3

Factor a perfect square on the left side:
(h + 9)(h + 9) = 3

Calculate the square root of the right side: 1.732050808

Break this problem into two subproblems by setting 
(h + 9) equal to 1.732050808 and -1.732050808.

Subproblem 1

h + 9 = 1.732050808 Simplifying h + 9 = 1.732050808 Reorder the terms: 9 + h = 1.732050808 Solving 9 + h = 1.732050808 Solving for variable 'h'. Move all terms containing h to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + h = 1.732050808 + -9 Combine like terms: 9 + -9 = 0 0 + h = 1.732050808 + -9 h = 1.732050808 + -9 Combine like terms: 1.732050808 + -9 = -7.267949192 h = -7.267949192 Simplifying h = -7.267949192

Subproblem 2

h + 9 = -1.732050808 Simplifying h + 9 = -1.732050808 Reorder the terms: 9 + h = -1.732050808 Solving 9 + h = -1.732050808 Solving for variable 'h'. Move all terms containing h to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + h = -1.732050808 + -9 Combine like terms: 9 + -9 = 0 0 + h = -1.732050808 + -9 h = -1.732050808 + -9 Combine like terms: -1.732050808 + -9 = -10.732050808 h = -10.732050808 Simplifying h = -10.732050808

Solution

The solution to the problem is based on the solutions from the subproblems. h = {-7.267949192, -10.732050808}

See similar equations:

| 5x^2-10x+2=0 | | (x+5)(x-2)=0 | | 42y^2+32y+6= | | 5x^2-10x-2=0 | | y^2+121= | | 7x+2x=41 | | 2*-2= | | 50*50-100*0= | | 2x^2+11=11 | | 5(x+4)=x | | r^2-121=0 | | 4d+3-7d=39+4d+9 | | X^2-2x-1=36 | | 5h+56=9h | | 79-6x=21x+16 | | 13-9x=137-37x | | 3x^2-3xy-7x+7y= | | -13-6x=11-10x | | 3x^3y^2-27x^2y= | | 4x+14=-4 | | 5x+23=15x-97 | | 2400x+1800y=48000 | | 2400x+1800x=48000 | | 4x+3y=80 | | 42=3x^2 | | 696=4(x+16) | | 2x+7=2.7 | | x+11=47 | | x+17=44 | | 18-x-24+x=1x+6 | | 80=0.07x-20 | | 69a^3-23a^5= |

Equations solver categories