-x^2+19x-90=0

Simple and best practice solution for -x^2+19x-90=0 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+19x-90=0 equation:


Simplifying
-1x2 + 19x + -90 = 0

Reorder the terms:
-90 + 19x + -1x2 = 0

Solving
-90 + 19x + -1x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-10 + x)(9 + -1x) = 0

Subproblem 1

Set the factor '(-10 + x)' equal to zero and attempt to solve: Simplifying -10 + x = 0 Solving -10 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '10' to each side of the equation. -10 + 10 + x = 0 + 10 Combine like terms: -10 + 10 = 0 0 + x = 0 + 10 x = 0 + 10 Combine like terms: 0 + 10 = 10 x = 10 Simplifying x = 10

Subproblem 2

Set the factor '(9 + -1x)' equal to zero and attempt to solve: Simplifying 9 + -1x = 0 Solving 9 + -1x = 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 + -1x = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -1x = 0 + -9 -1x = 0 + -9 Combine like terms: 0 + -9 = -9 -1x = -9 Divide each side by '-1'. x = 9 Simplifying x = 9

Solution

x = {10, 9}

See similar equations:

| 30*x=1.56 | | c-5=4.1 | | D(t)=11t+8 | | 6x-2x=9 | | 5m-7=-92 | | 4x+20+3x-3=180 | | 25x^2-6x+11763=0 | | 199.66= | | 4y+83=5+2y | | 3u-3=3(4-u)-3 | | 5x^2+7x+8=0 | | -4(4y-8)=2(y+4) | | 2p+4(3.50)=32.50 | | 6x+5y+10=0 | | 2x+6y=78 | | -(x+w)+3(3w+5x)= | | sqrt(3x+7)+sqrt(x+6)=3 | | cos(x)(10cos(x)+5)=2 | | 10=a-11 | | 3x^5-2x+15=55 | | 0.0029=0.029 | | 9-2b^2=5 | | g(1)=log(3-2)-5 | | 5x^2+7x-8=0 | | 2m^2+72-98=0 | | 3(b-4)=-27 | | 4x^3-10x^2-28x+16=0 | | 3x*21= | | 2[x+2]=10 | | -3(g-3)=6 | | 12=m+10 | | n+7=-6 |

Equations solver categories