(5x-15)(5x-15)=297

Simple and best practice solution for (5x-15)(5x-15)=297 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 (5x-15)(5x-15)=297 equation:


Simplifying
(5x + -15)(5x + -15) = 297

Reorder the terms:
(-15 + 5x)(5x + -15) = 297

Reorder the terms:
(-15 + 5x)(-15 + 5x) = 297

Multiply (-15 + 5x) * (-15 + 5x)
(-15(-15 + 5x) + 5x * (-15 + 5x)) = 297
((-15 * -15 + 5x * -15) + 5x * (-15 + 5x)) = 297
((225 + -75x) + 5x * (-15 + 5x)) = 297
(225 + -75x + (-15 * 5x + 5x * 5x)) = 297
(225 + -75x + (-75x + 25x2)) = 297

Combine like terms: -75x + -75x = -150x
(225 + -150x + 25x2) = 297

Solving
225 + -150x + 25x2 = 297

Solving for variable 'x'.

Reorder the terms:
225 + -297 + -150x + 25x2 = 297 + -297

Combine like terms: 225 + -297 = -72
-72 + -150x + 25x2 = 297 + -297

Combine like terms: 297 + -297 = 0
-72 + -150x + 25x2 = 0

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

Divide each side by '25'.
-2.88 + -6x + x2 = 0

Move the constant term to the right:

Add '2.88' to each side of the equation.
-2.88 + -6x + 2.88 + x2 = 0 + 2.88

Reorder the terms:
-2.88 + 2.88 + -6x + x2 = 0 + 2.88

Combine like terms: -2.88 + 2.88 = 0.00
0.00 + -6x + x2 = 0 + 2.88
-6x + x2 = 0 + 2.88

Combine like terms: 0 + 2.88 = 2.88
-6x + x2 = 2.88

The x term is -6x.  Take half its coefficient (-3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
-6x + 9 + x2 = 2.88 + 9

Reorder the terms:
9 + -6x + x2 = 2.88 + 9

Combine like terms: 2.88 + 9 = 11.88
9 + -6x + x2 = 11.88

Factor a perfect square on the left side:
(x + -3)(x + -3) = 11.88

Calculate the square root of the right side: 3.446737588

Break this problem into two subproblems by setting 
(x + -3) equal to 3.446737588 and -3.446737588.

Subproblem 1

x + -3 = 3.446737588 Simplifying x + -3 = 3.446737588 Reorder the terms: -3 + x = 3.446737588 Solving -3 + x = 3.446737588 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + x = 3.446737588 + 3 Combine like terms: -3 + 3 = 0 0 + x = 3.446737588 + 3 x = 3.446737588 + 3 Combine like terms: 3.446737588 + 3 = 6.446737588 x = 6.446737588 Simplifying x = 6.446737588

Subproblem 2

x + -3 = -3.446737588 Simplifying x + -3 = -3.446737588 Reorder the terms: -3 + x = -3.446737588 Solving -3 + x = -3.446737588 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + x = -3.446737588 + 3 Combine like terms: -3 + 3 = 0 0 + x = -3.446737588 + 3 x = -3.446737588 + 3 Combine like terms: -3.446737588 + 3 = -0.446737588 x = -0.446737588 Simplifying x = -0.446737588

Solution

The solution to the problem is based on the solutions from the subproblems. x = {6.446737588, -0.446737588}

See similar equations:

| 3-3*6+2=1 | | 535x=15x+41 | | 4x^8+5x^2y=-12 | | g=2x+5h | | -2x+4x=-3+11x | | -6z^2=-12 | | 600=5(v-701) | | 7+49x=21x+23 | | 40=-13w+u+8w | | 3x^2-12xy-8x+32y= | | -4+4x=8+18x | | 24=7x+7x-4 | | 2x-(3x+5)=3x-49 | | -5+3x=-1 | | 8x-(6x+4)=3x-31 | | 5x^7+5x-25= | | 15=(2)(3.14)x | | 4c^8fx^5-2y^3=1 | | -7p-4=-2p+11 | | B=90+(25+6)w | | 7x-6=5x-44 | | [x+3]y=14 | | 26(q-977)=572 | | 730=5(g-778) | | 12x^3+20x^2-48x= | | 103=106-3u | | 5x-7=1-x | | 9m(45)=108 | | 1.32g-5=0.94 | | 595=28u-21 | | 24x^4+54x^3+30x^2= | | 6x+4+4x+36=180 |

Equations solver categories