45=2x^2+x

Simple and best practice solution for 45=2x^2+x 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 45=2x^2+x equation:


Simplifying
45 = 2x2 + x

Reorder the terms:
45 = x + 2x2

Solving
45 = x + 2x2

Solving for variable 'x'.

Reorder the terms:
45 + -1x + -2x2 = x + -1x + 2x2 + -2x2

Combine like terms: x + -1x = 0
45 + -1x + -2x2 = 0 + 2x2 + -2x2
45 + -1x + -2x2 = 2x2 + -2x2

Combine like terms: 2x2 + -2x2 = 0
45 + -1x + -2x2 = 0

Factor a trinomial.
(9 + -2x)(5 + x) = 0

Subproblem 1

Set the factor '(9 + -2x)' equal to zero and attempt to solve: Simplifying 9 + -2x = 0 Solving 9 + -2x = 0 Move all terms containing x to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -2x = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -2x = 0 + -9 -2x = 0 + -9 Combine like terms: 0 + -9 = -9 -2x = -9 Divide each side by '-2'. x = 4.5 Simplifying x = 4.5

Subproblem 2

Set the factor '(5 + x)' equal to zero and attempt to solve: Simplifying 5 + x = 0 Solving 5 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + x = 0 + -5 x = 0 + -5 Combine like terms: 0 + -5 = -5 x = -5 Simplifying x = -5

Solution

x = {4.5, -5}

See similar equations:

| 3a^2-a=0 | | (a^2*-0.669)+(a*32.8)+2998=0 | | N/6-4=12 | | 7x^2+32=7-40c | | (a^2*-0.669)+(a*32.8)=0 | | 12a^2-13a+3=0 | | -5(2x+8)=-2(5x+8) | | t/5-6=9 | | 9x^2+18x+4y^2-27=0 | | 28-4(c+2)=2(3c-8)-14 | | p^4-25p=0 | | 3/4x-9=x/3 | | 9n=2+4n-3n^2 | | 15x^3-60x^3=0 | | 4+x-3=7-3 | | 2=s^2/(.1-7s)^7 | | 15x-9=45x-3 | | 20x^2=-80+116x | | 6(m-4)-5(m+3)=-39 | | 3x-d+15y=2x+z | | 2n^2-8n+6=0 | | 3H=2J-K | | -2d+3=17+5d | | m+2=2m | | 2a-8A=3 | | n^2=-4-4n | | 16x+2.2=0.8x-2.44 | | 21x^6y^4+6x^5y^5+3x^4y^3= | | -2Cos^2x+Sinx+1=0 | | 4m+1=17 | | 4k+7=11 | | 6y=12y |

Equations solver categories