2h^2-7h-3=0

Simple and best practice solution for 2h^2-7h-3=0 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 2h^2-7h-3=0 equation:


Simplifying
2h2 + -7h + -3 = 0

Reorder the terms:
-3 + -7h + 2h2 = 0

Solving
-3 + -7h + 2h2 = 0

Solving for variable 'h'.

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

Divide each side by '2'.
-1.5 + -3.5h + h2 = 0

Move the constant term to the right:

Add '1.5' to each side of the equation.
-1.5 + -3.5h + 1.5 + h2 = 0 + 1.5

Reorder the terms:
-1.5 + 1.5 + -3.5h + h2 = 0 + 1.5

Combine like terms: -1.5 + 1.5 = 0.0
0.0 + -3.5h + h2 = 0 + 1.5
-3.5h + h2 = 0 + 1.5

Combine like terms: 0 + 1.5 = 1.5
-3.5h + h2 = 1.5

The h term is -3.5h.  Take half its coefficient (-1.75).
Square it (3.0625) and add it to both sides.

Add '3.0625' to each side of the equation.
-3.5h + 3.0625 + h2 = 1.5 + 3.0625

Reorder the terms:
3.0625 + -3.5h + h2 = 1.5 + 3.0625

Combine like terms: 1.5 + 3.0625 = 4.5625
3.0625 + -3.5h + h2 = 4.5625

Factor a perfect square on the left side:
(h + -1.75)(h + -1.75) = 4.5625

Calculate the square root of the right side: 2.136000936

Break this problem into two subproblems by setting 
(h + -1.75) equal to 2.136000936 and -2.136000936.

Subproblem 1

h + -1.75 = 2.136000936 Simplifying h + -1.75 = 2.136000936 Reorder the terms: -1.75 + h = 2.136000936 Solving -1.75 + h = 2.136000936 Solving for variable 'h'. Move all terms containing h to the left, all other terms to the right. Add '1.75' to each side of the equation. -1.75 + 1.75 + h = 2.136000936 + 1.75 Combine like terms: -1.75 + 1.75 = 0.00 0.00 + h = 2.136000936 + 1.75 h = 2.136000936 + 1.75 Combine like terms: 2.136000936 + 1.75 = 3.886000936 h = 3.886000936 Simplifying h = 3.886000936

Subproblem 2

h + -1.75 = -2.136000936 Simplifying h + -1.75 = -2.136000936 Reorder the terms: -1.75 + h = -2.136000936 Solving -1.75 + h = -2.136000936 Solving for variable 'h'. Move all terms containing h to the left, all other terms to the right. Add '1.75' to each side of the equation. -1.75 + 1.75 + h = -2.136000936 + 1.75 Combine like terms: -1.75 + 1.75 = 0.00 0.00 + h = -2.136000936 + 1.75 h = -2.136000936 + 1.75 Combine like terms: -2.136000936 + 1.75 = -0.386000936 h = -0.386000936 Simplifying h = -0.386000936

Solution

The solution to the problem is based on the solutions from the subproblems. h = {3.886000936, -0.386000936}

See similar equations:

| 2n-7=-7+n | | 3/5m=12 | | 2h^2-7h=0 | | 9-4i/I | | 14x+7=2x-17 | | 1/2x-1/4sin2x(-1/4sin2x) | | 4-8+2h-6h= | | (x-3)(x+3)=5x+5 | | a/-2=9 | | X^(3/2)=343 | | -56/8=11/6 | | 13=6p | | -5x-13x=-72 | | -100sin(x)+6cos(x)=-80 | | Y=8/20x | | -5x-13x=72 | | Y=8/3x-3 | | 890+x=1,359 | | 49z^2-14z+1=0 | | 6(5-t)-(4-4t)=19 | | x^2-17x=168 | | 2(3x+5)=9(5x+8)+1 | | X(x+48)=4900 | | .105n=5907 | | 7x+4=-3x^2 | | -3y-11=-5 | | 2n-(5-3n)= | | 3=k/7 | | -2y=4-8 | | (-4w^2+6w-2)+(7w^2+3w+5)=0 | | 0.06(3x+6)=0.18(x-2)+0.72 | | 0.5s=60 |

Equations solver categories