-x^2+13x=36

Simple and best practice solution for -x^2+13x=36 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+13x=36 equation:


Simplifying
-1x2 + 13x = 36

Reorder the terms:
13x + -1x2 = 36

Solving
13x + -1x2 = 36

Solving for variable 'x'.

Reorder the terms:
-36 + 13x + -1x2 = 36 + -36

Combine like terms: 36 + -36 = 0
-36 + 13x + -1x2 = 0

Factor a trinomial.
(-9 + x)(4 + -1x) = 0

Subproblem 1

Set the factor '(-9 + x)' equal to zero and attempt to solve: Simplifying -9 + x = 0 Solving -9 + x = 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 + x = 0 + 9 Combine like terms: -9 + 9 = 0 0 + x = 0 + 9 x = 0 + 9 Combine like terms: 0 + 9 = 9 x = 9 Simplifying x = 9

Subproblem 2

Set the factor '(4 + -1x)' equal to zero and attempt to solve: Simplifying 4 + -1x = 0 Solving 4 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -1x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -1x = 0 + -4 -1x = 0 + -4 Combine like terms: 0 + -4 = -4 -1x = -4 Divide each side by '-1'. x = 4 Simplifying x = 4

Solution

x = {9, 4}

See similar equations:

| -0.2p+1.8p+6=30 | | 3(5x-2)+9=10x-2 | | 2(5s+5)-4s=3(2s+6)-22 | | 4c+8=5.457479 | | x^4-10x^3-10x+26x^2+1=0 | | x^2+18x=9 | | 64r^2+128r-57= | | y^2-7y-44= | | 6x=5x-9 | | x^4+8x=y | | 3z=12-z | | -x^2+20x-91= | | -10=-12+0.57n | | .75x=16 | | 6p^4-32p^3+5p^2=0 | | 2x^3-19x^2=-9x | | 2(4t-1)+t=8-1 | | 5x^2+3x+10=0 | | 21x^2-10x-16= | | 11-3(a-1)=2+9 | | 11+78x+7x^2=0 | | 16y^2+48u+27=0 | | 11x-3=5x-4(1-2x) | | 2x+6/5=4 | | 49m+25m+49m= | | -18=4x-19 | | -6y+4=-2(4y+6) | | 14y^2-4y+3=0 | | 17x-9=12x+4 | | -3x^2-x+4=0 | | (4-x)=-11 | | x+3x^2-2= |

Equations solver categories