5x(x-6)-7(x+2)=-10

Simple and best practice solution for 5x(x-6)-7(x+2)=-10 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(x-6)-7(x+2)=-10 equation:


Simplifying
5x(x + -6) + -7(x + 2) = -10

Reorder the terms:
5x(-6 + x) + -7(x + 2) = -10
(-6 * 5x + x * 5x) + -7(x + 2) = -10
(-30x + 5x2) + -7(x + 2) = -10

Reorder the terms:
-30x + 5x2 + -7(2 + x) = -10
-30x + 5x2 + (2 * -7 + x * -7) = -10
-30x + 5x2 + (-14 + -7x) = -10

Reorder the terms:
-14 + -30x + -7x + 5x2 = -10

Combine like terms: -30x + -7x = -37x
-14 + -37x + 5x2 = -10

Solving
-14 + -37x + 5x2 = -10

Solving for variable 'x'.

Reorder the terms:
-14 + 10 + -37x + 5x2 = -10 + 10

Combine like terms: -14 + 10 = -4
-4 + -37x + 5x2 = -10 + 10

Combine like terms: -10 + 10 = 0
-4 + -37x + 5x2 = 0

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

Divide each side by '5'.
-0.8 + -7.4x + x2 = 0

Move the constant term to the right:

Add '0.8' to each side of the equation.
-0.8 + -7.4x + 0.8 + x2 = 0 + 0.8

Reorder the terms:
-0.8 + 0.8 + -7.4x + x2 = 0 + 0.8

Combine like terms: -0.8 + 0.8 = 0.0
0.0 + -7.4x + x2 = 0 + 0.8
-7.4x + x2 = 0 + 0.8

Combine like terms: 0 + 0.8 = 0.8
-7.4x + x2 = 0.8

The x term is -7.4x.  Take half its coefficient (-3.7).
Square it (13.69) and add it to both sides.

Add '13.69' to each side of the equation.
-7.4x + 13.69 + x2 = 0.8 + 13.69

Reorder the terms:
13.69 + -7.4x + x2 = 0.8 + 13.69

Combine like terms: 0.8 + 13.69 = 14.49
13.69 + -7.4x + x2 = 14.49

Factor a perfect square on the left side:
(x + -3.7)(x + -3.7) = 14.49

Calculate the square root of the right side: 3.806573262

Break this problem into two subproblems by setting 
(x + -3.7) equal to 3.806573262 and -3.806573262.

Subproblem 1

x + -3.7 = 3.806573262 Simplifying x + -3.7 = 3.806573262 Reorder the terms: -3.7 + x = 3.806573262 Solving -3.7 + x = 3.806573262 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.7' to each side of the equation. -3.7 + 3.7 + x = 3.806573262 + 3.7 Combine like terms: -3.7 + 3.7 = 0.0 0.0 + x = 3.806573262 + 3.7 x = 3.806573262 + 3.7 Combine like terms: 3.806573262 + 3.7 = 7.506573262 x = 7.506573262 Simplifying x = 7.506573262

Subproblem 2

x + -3.7 = -3.806573262 Simplifying x + -3.7 = -3.806573262 Reorder the terms: -3.7 + x = -3.806573262 Solving -3.7 + x = -3.806573262 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.7' to each side of the equation. -3.7 + 3.7 + x = -3.806573262 + 3.7 Combine like terms: -3.7 + 3.7 = 0.0 0.0 + x = -3.806573262 + 3.7 x = -3.806573262 + 3.7 Combine like terms: -3.806573262 + 3.7 = -0.106573262 x = -0.106573262 Simplifying x = -0.106573262

Solution

The solution to the problem is based on the solutions from the subproblems. x = {7.506573262, -0.106573262}

See similar equations:

| (2x+4)(2x+3)-(2x+3)=0 | | 1(5/7) | | 8x+6=4x-18 | | 15x+6x=7+53 | | X/7=x/5 | | 10-8x=5-3x | | 21-[4-8y-3(y+4)]=-3(2y-6)-[9(y-1)-7y+13] | | 3z*10+1=-1 | | X+9=2x-9 | | -9(v+8)=7v-8 | | 10x-11y+9=0 | | X^2+7s-1=0 | | 3z^10+1=-1 | | 4x+9+2x-15=90 | | 2n-6=40 | | X/3=x/8-3 | | X+2X+(3X+30)+5X=360 | | 10(-90)+9y=90 | | 7logx+5logx=24 | | (Y/2-y)=(3) | | 10(90)+9y=90 | | 6(1)(x-1)=3(x+1)(x-1)+(x+1)(1)(2) | | -7x-2y=28 | | Y/2-y=3 | | 9x-11=0 | | 30-10+5+5= | | 10-2b=9-5b | | 14x+42y= | | (4)=4 | | 5x+34=10x | | 10-2a=8-3a | | 5(x-6)=21 |

Equations solver categories