9x^2+x=8

Simple and best practice solution for 9x^2+x=8 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 9x^2+x=8 equation:


Simplifying
9x2 + x = 8

Reorder the terms:
x + 9x2 = 8

Solving
x + 9x2 = 8

Solving for variable 'x'.

Reorder the terms:
-8 + x + 9x2 = 8 + -8

Combine like terms: 8 + -8 = 0
-8 + x + 9x2 = 0

Factor a trinomial.
(-1 + -1x)(8 + -9x) = 0

Subproblem 1

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

Subproblem 2

Set the factor '(8 + -9x)' equal to zero and attempt to solve: Simplifying 8 + -9x = 0 Solving 8 + -9x = 0 Move all terms containing x to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + -9x = 0 + -8 Combine like terms: 8 + -8 = 0 0 + -9x = 0 + -8 -9x = 0 + -8 Combine like terms: 0 + -8 = -8 -9x = -8 Divide each side by '-9'. x = 0.8888888889 Simplifying x = 0.8888888889

Solution

x = {-1, 0.8888888889}

See similar equations:

| 5q-5=20 | | 8x^2-12=-29x | | -1/2(2)-4= | | -3x^2+624x-4800=0 | | 2+ln(x-4)=4 | | -12/3*4/5 | | 5(x-2)+-9=-7(1-x) | | 5+(-3)+(-5)=x | | 3b=3+4(-7+5b) | | 2m-4+m+3=17 | | Y=tan(7x^2) | | 253=5x+3 | | x/93 | | 9w*w=81 | | -3/7*11/12 | | 7n-3=3+6n | | 17/3=51/m | | f(x)=205+32x | | 0=-16t^2+235t-151 | | (6ab^2)-(6ab^2+3a^4b^4)= | | 3/4x18=5 | | cos(x)=.5 | | 2/6=5/x | | 0=x^5+x^3+12x | | A-.5=2a-1.25 | | 0=27q-q^2-yq | | h=8+7h | | .072x+5.771=.06x+5.765 | | 2c^2-6c+8=0 | | (xy^4+3x^4y)-(6xy^4-4x^4y)= | | .05(y-20)+.08y=.03y-.05(40) | | .5x+.35(200)=.25(182) |

Equations solver categories