(x^2-3x-40)+(x-3)=

Simple and best practice solution for (x^2-3x-40)+(x-3)= 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 (x^2-3x-40)+(x-3)= equation:


Simplifying
(x2 + -3x + -40) + (x + -3) = 0

Reorder the terms:
(-40 + -3x + x2) + (x + -3) = 0

Remove parenthesis around (-40 + -3x + x2)
-40 + -3x + x2 + (x + -3) = 0

Reorder the terms:
-40 + -3x + x2 + (-3 + x) = 0

Remove parenthesis around (-3 + x)
-40 + -3x + x2 + -3 + x = 0

Reorder the terms:
-40 + -3 + -3x + x + x2 = 0

Combine like terms: -40 + -3 = -43
-43 + -3x + x + x2 = 0

Combine like terms: -3x + x = -2x
-43 + -2x + x2 = 0

Solving
-43 + -2x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '43' to each side of the equation.
-43 + -2x + 43 + x2 = 0 + 43

Reorder the terms:
-43 + 43 + -2x + x2 = 0 + 43

Combine like terms: -43 + 43 = 0
0 + -2x + x2 = 0 + 43
-2x + x2 = 0 + 43

Combine like terms: 0 + 43 = 43
-2x + x2 = 43

The x term is -2x.  Take half its coefficient (-1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
-2x + 1 + x2 = 43 + 1

Reorder the terms:
1 + -2x + x2 = 43 + 1

Combine like terms: 43 + 1 = 44
1 + -2x + x2 = 44

Factor a perfect square on the left side:
(x + -1)(x + -1) = 44

Calculate the square root of the right side: 6.633249581

Break this problem into two subproblems by setting 
(x + -1) equal to 6.633249581 and -6.633249581.

Subproblem 1

x + -1 = 6.633249581 Simplifying x + -1 = 6.633249581 Reorder the terms: -1 + x = 6.633249581 Solving -1 + x = 6.633249581 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + x = 6.633249581 + 1 Combine like terms: -1 + 1 = 0 0 + x = 6.633249581 + 1 x = 6.633249581 + 1 Combine like terms: 6.633249581 + 1 = 7.633249581 x = 7.633249581 Simplifying x = 7.633249581

Subproblem 2

x + -1 = -6.633249581 Simplifying x + -1 = -6.633249581 Reorder the terms: -1 + x = -6.633249581 Solving -1 + x = -6.633249581 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + x = -6.633249581 + 1 Combine like terms: -1 + 1 = 0 0 + x = -6.633249581 + 1 x = -6.633249581 + 1 Combine like terms: -6.633249581 + 1 = -5.633249581 x = -5.633249581 Simplifying x = -5.633249581

Solution

The solution to the problem is based on the solutions from the subproblems. x = {7.633249581, -5.633249581}

See similar equations:

| f(6)=6(2)-4 | | 1.7sinx+cosx=1 | | X+X+1+X+2=6216 | | x-x^2+42=0 | | 10(3-11)-5=-65 | | -25x^2+4y^2+150x-325=0 | | 0=-1x^2+1x+20 | | -3q(4q-3)= | | 0=-x^2+1+20 | | -22=-3(-7+12)-7 | | 24+2x-x^2=0 | | sinx+cosx=-1.4 | | -25x^2+4y^2+150x-325=o | | 3y^2-6y-4=0 | | h-7.9=13 | | 4(2x-5)=-37 | | 5x^2+18x-6=0 | | 3=15+10(-6)-8(-6) | | 4x^2=9x-9 | | 4/5h=-20 | | h(x)=x^2+8 | | X-6=17x | | -1/3=y-2/5 | | cos(2x)=2-3cosx | | 25=-5(-4)-5(-4)-15 | | 60n^2+40n=0 | | x^2-20=3x+20 | | 7=2(-6-1)-5 | | 7=2(-7-1)-5 | | .5(x-12)+3x=4x-3 | | 6(3k+5)=3q | | 5(e-6)+9=e-1 |

Equations solver categories