4x(x*10)=-7x+65

Simple and best practice solution for 4x(x*10)=-7x+65 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 4x(x*10)=-7x+65 equation:


Simplifying
4x(x * 10) = -7x + 65

Reorder the terms for easier multiplication:
4x(10x) = -7x + 65

Remove parenthesis around (10x)
4x * 10x = -7x + 65

Reorder the terms for easier multiplication:
4 * 10x * x = -7x + 65

Multiply 4 * 10
40x * x = -7x + 65

Multiply x * x
40x2 = -7x + 65

Reorder the terms:
40x2 = 65 + -7x

Solving
40x2 = 65 + -7x

Solving for variable 'x'.

Reorder the terms:
-65 + 7x + 40x2 = 65 + -7x + -65 + 7x

Reorder the terms:
-65 + 7x + 40x2 = 65 + -65 + -7x + 7x

Combine like terms: 65 + -65 = 0
-65 + 7x + 40x2 = 0 + -7x + 7x
-65 + 7x + 40x2 = -7x + 7x

Combine like terms: -7x + 7x = 0
-65 + 7x + 40x2 = 0

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

Divide each side by '40'.
-1.625 + 0.175x + x2 = 0.0

Move the constant term to the right:

Add '1.625' to each side of the equation.
-1.625 + 0.175x + 1.625 + x2 = 0.0 + 1.625

Reorder the terms:
-1.625 + 1.625 + 0.175x + x2 = 0.0 + 1.625

Combine like terms: -1.625 + 1.625 = 0.000
0.000 + 0.175x + x2 = 0.0 + 1.625
0.175x + x2 = 0.0 + 1.625

Combine like terms: 0.0 + 1.625 = 1.625
0.175x + x2 = 1.625

The x term is 0.175x.  Take half its coefficient (0.0875).
Square it (0.00765625) and add it to both sides.

Add '0.00765625' to each side of the equation.
0.175x + 0.00765625 + x2 = 1.625 + 0.00765625

Reorder the terms:
0.00765625 + 0.175x + x2 = 1.625 + 0.00765625

Combine like terms: 1.625 + 0.00765625 = 1.63265625
0.00765625 + 0.175x + x2 = 1.63265625

Factor a perfect square on the left side:
(x + 0.0875)(x + 0.0875) = 1.63265625

Calculate the square root of the right side: 1.277754378

Break this problem into two subproblems by setting 
(x + 0.0875) equal to 1.277754378 and -1.277754378.

Subproblem 1

x + 0.0875 = 1.277754378 Simplifying x + 0.0875 = 1.277754378 Reorder the terms: 0.0875 + x = 1.277754378 Solving 0.0875 + x = 1.277754378 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.0875' to each side of the equation. 0.0875 + -0.0875 + x = 1.277754378 + -0.0875 Combine like terms: 0.0875 + -0.0875 = 0.0000 0.0000 + x = 1.277754378 + -0.0875 x = 1.277754378 + -0.0875 Combine like terms: 1.277754378 + -0.0875 = 1.190254378 x = 1.190254378 Simplifying x = 1.190254378

Subproblem 2

x + 0.0875 = -1.277754378 Simplifying x + 0.0875 = -1.277754378 Reorder the terms: 0.0875 + x = -1.277754378 Solving 0.0875 + x = -1.277754378 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.0875' to each side of the equation. 0.0875 + -0.0875 + x = -1.277754378 + -0.0875 Combine like terms: 0.0875 + -0.0875 = 0.0000 0.0000 + x = -1.277754378 + -0.0875 x = -1.277754378 + -0.0875 Combine like terms: -1.277754378 + -0.0875 = -1.365254378 x = -1.365254378 Simplifying x = -1.365254378

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.190254378, -1.365254378}

See similar equations:

| X+32=2x+42 | | 12c+-c= | | 5x^2+60=90 | | 4x+98=180 | | 2-5x=-7x+10 | | 51/2v=99 | | 3y-7y=-32+8y | | 101e^(p-3p^2/2) | | 6y^2+5X=6 | | -2x-46=-7x+39 | | 8 = .8(7x+40) | | 9x-3x=42 | | 20=2(g+3)+6 | | 6x-40=9x+35 | | -x-9=-3x+15 | | 1/4-6/11 | | 333=1/2t | | 17x+x=40-20 | | 1a+9b=2 | | 7x-21=5x+35 | | 5x/6-3x/7=1 | | 5x^2+4y^2=90 | | 3=3(g-7) | | 3-12=24 | | 7(4b-4)=122 | | -40-5x=20-8x | | -12x-52=-5x+102 | | 22x-10=8(3x-6) | | -3-x=5x-39 | | 16b+4=0 | | -59+9x=26+4x | | 8n-21=-5 |

Equations solver categories