2x(x+5)-x-4=7

Simple and best practice solution for 2x(x+5)-x-4=7 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 2x(x+5)-x-4=7 equation: 


Simplifying
2x(x + 5) + -1x + -4 = 7

Reorder the terms:
2x(5 + x) + -1x + -4 = 7
(5 * 2x + x * 2x) + -1x + -4 = 7
(10x + 2x2) + -1x + -4 = 7

Reorder the terms:
-4 + 10x + -1x + 2x2 = 7

Combine like terms: 10x + -1x = 9x
-4 + 9x + 2x2 = 7

Solving
-4 + 9x + 2x2 = 7

Solving for variable 'x'.

Reorder the terms:
-4 + -7 + 9x + 2x2 = 7 + -7

Combine like terms: -4 + -7 = -11
-11 + 9x + 2x2 = 7 + -7

Combine like terms: 7 + -7 = 0
-11 + 9x + 2x2 = 0

Factor a trinomial.
(-11 + -2x)(1 + -1x) = 0


Subproblem 1
Set the factor '(-11 + -2x)' equal to zero and attempt to solve:

Simplifying
-11 + -2x = 0

Solving
-11 + -2x = 0

Move all terms containing x to the left, all other terms to the right.

Add '11' to each side of the equation.
-11 + 11 + -2x = 0 + 11

Combine like terms: -11 + 11 = 0
0 + -2x = 0 + 11
-2x = 0 + 11

Combine like terms: 0 + 11 = 11
-2x = 11

Divide each side by '-2'.
x = -5.5

Simplifying
x = -5.5

Subproblem 2
Set the factor '(1 + -1x)' equal to zero and attempt to solve:

Simplifying
1 + -1x = 0

Solving
1 + -1x = 0

Move all terms containing x to the left, all other terms to the right.

Add '-1' to each side of the equation.
1 + -1 + -1x = 0 + -1

Combine like terms: 1 + -1 = 0
0 + -1x = 0 + -1
-1x = 0 + -1

Combine like terms: 0 + -1 = -1
-1x = -1

Divide each side by '-1'.
x = 1

Simplifying
x = 1
Solution
x = {-5.5, 1}

See similar equations:

| 2(1.5z+2.5)=17.0 | | Y=0.05(320)+16 | | 4(x+4)+3(9-3x)=-6(x-5)-6 | | -8(x-2)=32 | | -7(9-3x)=0 | | 10x-4=5x-4 | | 4(1.9x+2.75)=-4.2 | | 4n+9=5 | | 4(1.9+2.75)=-4.2 | | Y=0.05(160)+16 | | (4x+3)(4x+3)-25=0 | | Sqrtx+7=4-sqrtx-2 | | Y=0.05(0)+16 | | 8(x-8)=1+7x | | 3d+7e+11d+7e= | | 400/2=x/1,5 | | x^2+x=3600000000 | | (4x+3)2-25=0 | | 3y+1-y=2+y+2 | | 6y-1/5y-3 | | 0.09xX=75.50 | | h=8vt-6t^2 | | (7b-5)-2(3b+2)=4 | | 28y-16= | | 4w+6w=20 | | =6(7-2m+n) | | 6+4v=27 | | 2(2.7x+1.5)=24.6 | | 0.09xX=987.24 | | 2x+1x=9.6 | | x=1+0.1x | | -8(x-6)=-6 |

Equations solver categories