(2x-3)2=(2x-5)(2x+5)-2

Simple and best practice solution for (2x-3)2=(2x-5)(2x+5)-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 (2x-3)2=(2x-5)(2x+5)-2 equation:


Simplifying
(2x + -3) * 2 = (2x + -5)(2x + 5) + -2

Reorder the terms:
(-3 + 2x) * 2 = (2x + -5)(2x + 5) + -2

Reorder the terms for easier multiplication:
2(-3 + 2x) = (2x + -5)(2x + 5) + -2
(-3 * 2 + 2x * 2) = (2x + -5)(2x + 5) + -2
(-6 + 4x) = (2x + -5)(2x + 5) + -2

Reorder the terms:
-6 + 4x = (-5 + 2x)(2x + 5) + -2

Reorder the terms:
-6 + 4x = (-5 + 2x)(5 + 2x) + -2

Multiply (-5 + 2x) * (5 + 2x)
-6 + 4x = (-5(5 + 2x) + 2x * (5 + 2x)) + -2
-6 + 4x = ((5 * -5 + 2x * -5) + 2x * (5 + 2x)) + -2
-6 + 4x = ((-25 + -10x) + 2x * (5 + 2x)) + -2
-6 + 4x = (-25 + -10x + (5 * 2x + 2x * 2x)) + -2
-6 + 4x = (-25 + -10x + (10x + 4x2)) + -2

Combine like terms: -10x + 10x = 0
-6 + 4x = (-25 + 0 + 4x2) + -2
-6 + 4x = (-25 + 4x2) + -2

Reorder the terms:
-6 + 4x = -25 + -2 + 4x2

Combine like terms: -25 + -2 = -27
-6 + 4x = -27 + 4x2

Solving
-6 + 4x = -27 + 4x2

Solving for variable 'x'.

Reorder the terms:
-6 + 27 + 4x + -4x2 = -27 + 4x2 + 27 + -4x2

Combine like terms: -6 + 27 = 21
21 + 4x + -4x2 = -27 + 4x2 + 27 + -4x2

Reorder the terms:
21 + 4x + -4x2 = -27 + 27 + 4x2 + -4x2

Combine like terms: -27 + 27 = 0
21 + 4x + -4x2 = 0 + 4x2 + -4x2
21 + 4x + -4x2 = 4x2 + -4x2

Combine like terms: 4x2 + -4x2 = 0
21 + 4x + -4x2 = 0

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

Divide each side by '-4'.
-5.25 + -1x + x2 = 0

Move the constant term to the right:

Add '5.25' to each side of the equation.
-5.25 + -1x + 5.25 + x2 = 0 + 5.25

Reorder the terms:
-5.25 + 5.25 + -1x + x2 = 0 + 5.25

Combine like terms: -5.25 + 5.25 = 0.00
0.00 + -1x + x2 = 0 + 5.25
-1x + x2 = 0 + 5.25

Combine like terms: 0 + 5.25 = 5.25
-1x + x2 = 5.25

The x term is -1x.  Take half its coefficient (-0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
-1x + 0.25 + x2 = 5.25 + 0.25

Reorder the terms:
0.25 + -1x + x2 = 5.25 + 0.25

Combine like terms: 5.25 + 0.25 = 5.5
0.25 + -1x + x2 = 5.5

Factor a perfect square on the left side:
(x + -0.5)(x + -0.5) = 5.5

Calculate the square root of the right side: 2.34520788

Break this problem into two subproblems by setting 
(x + -0.5) equal to 2.34520788 and -2.34520788.

Subproblem 1

x + -0.5 = 2.34520788 Simplifying x + -0.5 = 2.34520788 Reorder the terms: -0.5 + x = 2.34520788 Solving -0.5 + x = 2.34520788 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + x = 2.34520788 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = 2.34520788 + 0.5 x = 2.34520788 + 0.5 Combine like terms: 2.34520788 + 0.5 = 2.84520788 x = 2.84520788 Simplifying x = 2.84520788

Subproblem 2

x + -0.5 = -2.34520788 Simplifying x + -0.5 = -2.34520788 Reorder the terms: -0.5 + x = -2.34520788 Solving -0.5 + x = -2.34520788 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + x = -2.34520788 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = -2.34520788 + 0.5 x = -2.34520788 + 0.5 Combine like terms: -2.34520788 + 0.5 = -1.84520788 x = -1.84520788 Simplifying x = -1.84520788

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.84520788, -1.84520788}

See similar equations:

| 9b^2-39b-30=0 | | 2sec^2x=5tanx | | 5x^3+9x^2+16=0 | | 0.33t=33 | | X+47=6x+12 | | y=(x-2)(x-1-3i)(x-1+3i)(x+1-3i)(x+1+3i) | | 0.5z=1 | | 2x+5y=2016 | | 2x+5y=209 | | 3*x=11 | | 27b^2=3 | | 35=4w+3w | | 6/15=x/100 | | -13x+5x=-18 | | y=2x+65 | | 6,8x-4,2(2-x)=2,6 | | h=-16(2025)+45(45)+6 | | 5.8x-8.5=8.9 | | h=-16+45t+6 | | -4(13+5d)=-3(8d+8) | | 5x+y=.25 | | y=-2(x-14) | | -835+365-(-745)=275 | | -8(-4j-8)+20=20j | | 6y+3=-21 | | 5(15f-16)-9=8(13f+7) | | 30+2x=7x | | 3p=243 | | 8-2b-6b= | | 10+18q+17=9(3q-17) | | -11x-14=-113 | | 5y+3(y+2)=52 |

Equations solver categories