b^2-2b-17=-9

Simple and best practice solution for b^2-2b-17=-9 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 b^2-2b-17=-9 equation:


Simplifying
b2 + -2b + -17 = -9

Reorder the terms:
-17 + -2b + b2 = -9

Solving
-17 + -2b + b2 = -9

Solving for variable 'b'.

Reorder the terms:
-17 + 9 + -2b + b2 = -9 + 9

Combine like terms: -17 + 9 = -8
-8 + -2b + b2 = -9 + 9

Combine like terms: -9 + 9 = 0
-8 + -2b + b2 = 0

Factor a trinomial.
(-2 + -1b)(4 + -1b) = 0

Subproblem 1

Set the factor '(-2 + -1b)' equal to zero and attempt to solve: Simplifying -2 + -1b = 0 Solving -2 + -1b = 0 Move all terms containing b to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + -1b = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -1b = 0 + 2 -1b = 0 + 2 Combine like terms: 0 + 2 = 2 -1b = 2 Divide each side by '-1'. b = -2 Simplifying b = -2

Subproblem 2

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

Solution

b = {-2, 4}

See similar equations:

| 11x^2-3x+2=0 | | 2x-15=3x+4 | | 9+6=-7u-9u | | r^2+5r=2 | | Ln(3-2x)=1 | | 2+8=7x-5x | | 5x-2x+1=6x+7 | | -4t^2+10t-5=0 | | 7p^2+p-3=-9 | | 4y+3y=4-11 | | 5x-7x=12+30 | | -16x^2+40x-5=0 | | 3r^2-24=-3 | | 2w-9=3w+4 | | 8w-9=7w-2 | | 5u^2+42u-27=0 | | 6y-7=18 | | 3b+2=-7 | | 16x^2-96x+644+25y^2-300y=0 | | 10.4(x)=520 | | 2x+8=58+7x | | 4*-.5+2Y=-1 | | 3x-5=10-2 | | 12b-7+21b=b+27-200 | | 15+6x=-7x | | y-4=2(x+8) | | 5x+72=11x-12 | | 4(x-2)=8x+6 | | 4x+18xy= | | 104=4x+7x+5 | | 5b^2+6b=-8 | | 8x=x+54 |

Equations solver categories