16x^2-56x+49=28

Simple and best practice solution for 16x^2-56x+49=28 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 16x^2-56x+49=28 equation:


Simplifying
16x2 + -56x + 49 = 28

Reorder the terms:
49 + -56x + 16x2 = 28

Solving
49 + -56x + 16x2 = 28

Solving for variable 'x'.

Reorder the terms:
49 + -28 + -56x + 16x2 = 28 + -28

Combine like terms: 49 + -28 = 21
21 + -56x + 16x2 = 28 + -28

Combine like terms: 28 + -28 = 0
21 + -56x + 16x2 = 0

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

Divide each side by '16'.
1.3125 + -3.5x + x2 = 0

Move the constant term to the right:

Add '-1.3125' to each side of the equation.
1.3125 + -3.5x + -1.3125 + x2 = 0 + -1.3125

Reorder the terms:
1.3125 + -1.3125 + -3.5x + x2 = 0 + -1.3125

Combine like terms: 1.3125 + -1.3125 = 0.0000
0.0000 + -3.5x + x2 = 0 + -1.3125
-3.5x + x2 = 0 + -1.3125

Combine like terms: 0 + -1.3125 = -1.3125
-3.5x + x2 = -1.3125

The x term is -3.5x.  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.
-3.5x + 3.0625 + x2 = -1.3125 + 3.0625

Reorder the terms:
3.0625 + -3.5x + x2 = -1.3125 + 3.0625

Combine like terms: -1.3125 + 3.0625 = 1.75
3.0625 + -3.5x + x2 = 1.75

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

Calculate the square root of the right side: 1.322875656

Break this problem into two subproblems by setting 
(x + -1.75) equal to 1.322875656 and -1.322875656.

Subproblem 1

x + -1.75 = 1.322875656 Simplifying x + -1.75 = 1.322875656 Reorder the terms: -1.75 + x = 1.322875656 Solving -1.75 + x = 1.322875656 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.75' to each side of the equation. -1.75 + 1.75 + x = 1.322875656 + 1.75 Combine like terms: -1.75 + 1.75 = 0.00 0.00 + x = 1.322875656 + 1.75 x = 1.322875656 + 1.75 Combine like terms: 1.322875656 + 1.75 = 3.072875656 x = 3.072875656 Simplifying x = 3.072875656

Subproblem 2

x + -1.75 = -1.322875656 Simplifying x + -1.75 = -1.322875656 Reorder the terms: -1.75 + x = -1.322875656 Solving -1.75 + x = -1.322875656 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.75' to each side of the equation. -1.75 + 1.75 + x = -1.322875656 + 1.75 Combine like terms: -1.75 + 1.75 = 0.00 0.00 + x = -1.322875656 + 1.75 x = -1.322875656 + 1.75 Combine like terms: -1.322875656 + 1.75 = 0.427124344 x = 0.427124344 Simplifying x = 0.427124344

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.072875656, 0.427124344}

See similar equations:

| 5(y-5)=7y-25 | | -8x+3y=12 | | 0.4x-0.5(3)=2.1 | | y-34=-213 | | -2(x+4)-10(25-x+4)=5-3x-4(x+1) | | 3-(2w+5)= | | 2t3+4t2-30t | | y=5mx | | -7(y-1)=21 | | 0.51+0.24t=2.28t-0.85 | | 1/7(3y+4)=5+1/5(y+3) | | 3.4x+50.9=21.7-11.2x | | 3lnx=6-2x | | 3lnx=6-2 | | 2/3x=1/2x+3 | | 3.4x+50.9+21.7-11.2x | | 6x+5+7x+3x=12x+4 | | 23(16-x=5(2x+1) | | y-13=22 | | xy=tz | | -b/10=-3 | | 2x^2+2y^2-12x+8y+18=0 | | y*2=116-80 | | y*2=116-48 | | y*2=116-44 | | 5+8(x+2)=6(1+x)-1 | | y*2=116-40 | | 2(5-8)+9= | | 11=-n/7 | | 7/x=17/9 | | y*2=116-28 | | y*2=116-30 |

Equations solver categories