7x(x-3)-6x(x-5)=-50

Simple and best practice solution for 7x(x-3)-6x(x-5)=-50 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 7x(x-3)-6x(x-5)=-50 equation:


Simplifying
7x(x + -3) + -6x(x + -5) = -50

Reorder the terms:
7x(-3 + x) + -6x(x + -5) = -50
(-3 * 7x + x * 7x) + -6x(x + -5) = -50
(-21x + 7x2) + -6x(x + -5) = -50

Reorder the terms:
-21x + 7x2 + -6x(-5 + x) = -50
-21x + 7x2 + (-5 * -6x + x * -6x) = -50
-21x + 7x2 + (30x + -6x2) = -50

Reorder the terms:
-21x + 30x + 7x2 + -6x2 = -50

Combine like terms: -21x + 30x = 9x
9x + 7x2 + -6x2 = -50

Combine like terms: 7x2 + -6x2 = 1x2
9x + 1x2 = -50

Solving
9x + 1x2 = -50

Solving for variable 'x'.

Reorder the terms:
50 + 9x + 1x2 = -50 + 50

Combine like terms: -50 + 50 = 0
50 + 9x + 1x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-50' to each side of the equation.
50 + 9x + -50 + x2 = 0 + -50

Reorder the terms:
50 + -50 + 9x + x2 = 0 + -50

Combine like terms: 50 + -50 = 0
0 + 9x + x2 = 0 + -50
9x + x2 = 0 + -50

Combine like terms: 0 + -50 = -50
9x + x2 = -50

The x term is 9x.  Take half its coefficient (4.5).
Square it (20.25) and add it to both sides.

Add '20.25' to each side of the equation.
9x + 20.25 + x2 = -50 + 20.25

Reorder the terms:
20.25 + 9x + x2 = -50 + 20.25

Combine like terms: -50 + 20.25 = -29.75
20.25 + 9x + x2 = -29.75

Factor a perfect square on the left side:
(x + 4.5)(x + 4.5) = -29.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 12y=2y+4 | | 3b-50-2b=-10b+16 | | 6u^4+16u^3+8u^2=0 | | (x^2+x+1)(x-1)= | | 14(x^2)-51+7=0 | | 7x-2=4x+10 | | 3b^2-13b+10=0 | | x^2+3y-6=0 | | 6b^2-2b-60=0 | | 5(-3x+5)-5x=-3x | | 8+4x=x+14 | | x^2+7x-45=7 | | (x-3)(x^2+3x+9)= | | 5x+3y-12=0 | | 2(7+x)=48 | | 10x+12+x-10=x-5 | | 5n^2+19n-68=0 | | 9c+12-3c=c-2 | | n^2+13n+22=7 | | 2(3+2x)=26 | | ln(x-3)+ln(3x+1)=5 | | x^2+5x-54=0 | | 8y+5-y=4y+6 | | 5v^2-21=10 | | 3(3x-2)=75 | | z^3+125= | | -12x+8-6x=-9x+15-7x | | m^2+10m+14=-7 | | 26y^2-35y+9= | | -7-(-24/6)= | | -7-(24/6)= | | -7-(60/6)= |

Equations solver categories