((.30-x)(.40-x))=0

Simple and best practice solution for ((.30-x)(.40-x))=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 ((.30-x)(.40-x))=0 equation:


Simplifying
((0.30 + -1x)(0.40 + -1x)) = 0

Multiply (0.30 + -1x) * (0.40 + -1x)
((0.30(0.40 + -1x) + -1x * (0.40 + -1x))) = 0
(((0.40 * 0.30 + -1x * 0.30) + -1x * (0.40 + -1x))) = 0
(((0.12 + -0.3x) + -1x * (0.40 + -1x))) = 0
((0.12 + -0.3x + (0.40 * -1x + -1x * -1x))) = 0
((0.12 + -0.3x + (-0.4x + 1x2))) = 0

Combine like terms: -0.3x + -0.4x = -0.7x
((0.12 + -0.7x + 1x2)) = 0
(0.12 + -0.7x + 1x2) = 0

Remove parenthesis around (0.12 + -0.7x + 1x2)
0.12 + -0.7x + 1x2 = 0

Solving
0.12 + -0.7x + 1x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-0.12' to each side of the equation.
0.12 + -0.7x + -0.12 + x2 = 0 + -0.12

Reorder the terms:
0.12 + -0.12 + -0.7x + x2 = 0 + -0.12

Combine like terms: 0.12 + -0.12 = 0.00
0.00 + -0.7x + x2 = 0 + -0.12
-0.7x + x2 = 0 + -0.12

Combine like terms: 0 + -0.12 = -0.12
-0.7x + x2 = -0.12

The x term is -0.7x.  Take half its coefficient (-0.35).
Square it (0.1225) and add it to both sides.

Add '0.1225' to each side of the equation.
-0.7x + 0.1225 + x2 = -0.12 + 0.1225

Reorder the terms:
0.1225 + -0.7x + x2 = -0.12 + 0.1225

Combine like terms: -0.12 + 0.1225 = 0.0025
0.1225 + -0.7x + x2 = 0.0025

Factor a perfect square on the left side:
(x + -0.35)(x + -0.35) = 0.0025

Calculate the square root of the right side: 0.05

Break this problem into two subproblems by setting 
(x + -0.35) equal to 0.05 and -0.05.

Subproblem 1

x + -0.35 = 0.05 Simplifying x + -0.35 = 0.05 Reorder the terms: -0.35 + x = 0.05 Solving -0.35 + x = 0.05 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.35' to each side of the equation. -0.35 + 0.35 + x = 0.05 + 0.35 Combine like terms: -0.35 + 0.35 = 0.00 0.00 + x = 0.05 + 0.35 x = 0.05 + 0.35 Combine like terms: 0.05 + 0.35 = 0.4 x = 0.4 Simplifying x = 0.4

Subproblem 2

x + -0.35 = -0.05 Simplifying x + -0.35 = -0.05 Reorder the terms: -0.35 + x = -0.05 Solving -0.35 + x = -0.05 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.35' to each side of the equation. -0.35 + 0.35 + x = -0.05 + 0.35 Combine like terms: -0.35 + 0.35 = 0.00 0.00 + x = -0.05 + 0.35 x = -0.05 + 0.35 Combine like terms: -0.05 + 0.35 = 0.3 x = 0.3 Simplifying x = 0.3

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.4, 0.3}

See similar equations:

| -4(2+5f)= | | z^2-24z=c | | 2X^2+X-28= | | 7x^2+1=8 | | 6(2x-9)=2(6x-6) | | 7x^2+6-1=0 | | 4+9e=72 | | n-(-16)=-3n | | .5n=4+n | | 3(g-7)=20+2g | | y=-0.6666666667x+5 | | (x-5)(x^2-7x+12)=0 | | Y=0.5x+3.5 | | -3(2s-5)= | | 4x+23=6x+5 | | 80-3=5n+8 | | 6x^2-19x-85=0 | | 5k=62 | | k-5=62 | | 7ln(x+2.8)-11.2=0 | | N+315=600 | | -9(3+6d)= | | k+5=62 | | 5x+1y=38 | | 1x^2=4w | | b=10b(b+2)-b | | W^3+6w^2-16w-96=0 | | 8a-4(-5a+2)=12a | | 6N+3=5N+7 | | 103in=ft | | (-12-24x+15x^2)-(-1+2x+3x^2)= | | 6x+24y=92.41 |

Equations solver categories