(2x^2-5x+27)+(3x^2+7x-74)=

Simple and best practice solution for (2x^2-5x+27)+(3x^2+7x-74)= 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^2-5x+27)+(3x^2+7x-74)= equation:


Simplifying
(2x2 + -5x + 27) + (3x2 + 7x + -74) = 0

Reorder the terms:
(27 + -5x + 2x2) + (3x2 + 7x + -74) = 0

Remove parenthesis around (27 + -5x + 2x2)
27 + -5x + 2x2 + (3x2 + 7x + -74) = 0

Reorder the terms:
27 + -5x + 2x2 + (-74 + 7x + 3x2) = 0

Remove parenthesis around (-74 + 7x + 3x2)
27 + -5x + 2x2 + -74 + 7x + 3x2 = 0

Reorder the terms:
27 + -74 + -5x + 7x + 2x2 + 3x2 = 0

Combine like terms: 27 + -74 = -47
-47 + -5x + 7x + 2x2 + 3x2 = 0

Combine like terms: -5x + 7x = 2x
-47 + 2x + 2x2 + 3x2 = 0

Combine like terms: 2x2 + 3x2 = 5x2
-47 + 2x + 5x2 = 0

Solving
-47 + 2x + 5x2 = 0

Solving for variable 'x'.

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

Divide each side by '5'.
-9.4 + 0.4x + x2 = 0

Move the constant term to the right:

Add '9.4' to each side of the equation.
-9.4 + 0.4x + 9.4 + x2 = 0 + 9.4

Reorder the terms:
-9.4 + 9.4 + 0.4x + x2 = 0 + 9.4

Combine like terms: -9.4 + 9.4 = 0.0
0.0 + 0.4x + x2 = 0 + 9.4
0.4x + x2 = 0 + 9.4

Combine like terms: 0 + 9.4 = 9.4
0.4x + x2 = 9.4

The x term is 0.4x.  Take half its coefficient (0.2).
Square it (0.04) and add it to both sides.

Add '0.04' to each side of the equation.
0.4x + 0.04 + x2 = 9.4 + 0.04

Reorder the terms:
0.04 + 0.4x + x2 = 9.4 + 0.04

Combine like terms: 9.4 + 0.04 = 9.44
0.04 + 0.4x + x2 = 9.44

Factor a perfect square on the left side:
(x + 0.2)(x + 0.2) = 9.44

Calculate the square root of the right side: 3.072458299

Break this problem into two subproblems by setting 
(x + 0.2) equal to 3.072458299 and -3.072458299.

Subproblem 1

x + 0.2 = 3.072458299 Simplifying x + 0.2 = 3.072458299 Reorder the terms: 0.2 + x = 3.072458299 Solving 0.2 + x = 3.072458299 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.2' to each side of the equation. 0.2 + -0.2 + x = 3.072458299 + -0.2 Combine like terms: 0.2 + -0.2 = 0.0 0.0 + x = 3.072458299 + -0.2 x = 3.072458299 + -0.2 Combine like terms: 3.072458299 + -0.2 = 2.872458299 x = 2.872458299 Simplifying x = 2.872458299

Subproblem 2

x + 0.2 = -3.072458299 Simplifying x + 0.2 = -3.072458299 Reorder the terms: 0.2 + x = -3.072458299 Solving 0.2 + x = -3.072458299 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.2' to each side of the equation. 0.2 + -0.2 + x = -3.072458299 + -0.2 Combine like terms: 0.2 + -0.2 = 0.0 0.0 + x = -3.072458299 + -0.2 x = -3.072458299 + -0.2 Combine like terms: -3.072458299 + -0.2 = -3.272458299 x = -3.272458299 Simplifying x = -3.272458299

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.872458299, -3.272458299}

See similar equations:

| 32-3=29 | | 37-6x=48 | | A=(1/2)×13×12 | | 3(4.3)+4y=1 | | 5x+5y+5z=150 | | 30=2x+x+9 | | 28-2.2k=11.6x-54.8 | | 2=1.08x | | 2=1.8x | | -4.2-y=9 | | 5d-3m-4d-5m= | | 3xsq-243=0 | | 12.75=8.5x | | 5f/9 | | b=13 | | 27.2=8.5x | | -15=3/4b | | 2(x+3)=-11x-(x+4) | | 5=2u+3u | | 5/8s=275 | | 13y-5y=64 | | 13-5y=64 | | 14y+18=5-12y | | 3x*15=145.65 | | 55=k/6 | | 8x+4x-72=90-6x | | .875x= | | 1.125x= | | 8x^2-58x+50=0 | | 2x+9=-48 | | 4x+5b=2a-c | | 3(v-6)-4=-3(-6v+4)-3v |

Equations solver categories