(a-8)(a-9)=

Simple and best practice solution for (a-8)(a-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 (a-8)(a-9)= equation:


Simplifying
(a + -8)(a + -9) = 0

Reorder the terms:
(-8 + a)(a + -9) = 0

Reorder the terms:
(-8 + a)(-9 + a) = 0

Multiply (-8 + a) * (-9 + a)
(-8(-9 + a) + a(-9 + a)) = 0
((-9 * -8 + a * -8) + a(-9 + a)) = 0
((72 + -8a) + a(-9 + a)) = 0
(72 + -8a + (-9 * a + a * a)) = 0
(72 + -8a + (-9a + a2)) = 0

Combine like terms: -8a + -9a = -17a
(72 + -17a + a2) = 0

Solving
72 + -17a + a2 = 0

Solving for variable 'a'.

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

Subproblem 1

Set the factor '(8 + -1a)' equal to zero and attempt to solve: Simplifying 8 + -1a = 0 Solving 8 + -1a = 0 Move all terms containing a to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + -1a = 0 + -8 Combine like terms: 8 + -8 = 0 0 + -1a = 0 + -8 -1a = 0 + -8 Combine like terms: 0 + -8 = -8 -1a = -8 Divide each side by '-1'. a = 8 Simplifying a = 8

Subproblem 2

Set the factor '(9 + -1a)' equal to zero and attempt to solve: Simplifying 9 + -1a = 0 Solving 9 + -1a = 0 Move all terms containing a to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -1a = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -1a = 0 + -9 -1a = 0 + -9 Combine like terms: 0 + -9 = -9 -1a = -9 Divide each side by '-1'. a = 9 Simplifying a = 9

Solution

a = {8, 9}

See similar equations:

| Y+0.4=0.7(y+4) | | 1/4y-3-1/3 | | 2x-7+4x=8x+2-5x | | -9ab+9ab= | | (x^2+7)(x-8)= | | ln(x^2-4)=0 | | 14x^3-3x^2-44x-12=0 | | 13=2+c | | 8k-40=4(8+8k) | | (27a+24b)= | | (y+2)(9y+1)= | | x^3-7x+36=0 | | a^6-3a^3b-54b^2=0 | | 0.5x+0.5=5.5 | | 0.5x+05=5.5 | | (X+6)(x+8)=288 | | n-15=128 | | 6am-3m-2a+1=0 | | z^2+z-6= | | 3(-.4)+(-.4+2)= | | 1.5x-5=-1.5x+7 | | a^2-x^2-a-x=0 | | 64a^2-121= | | x^2-(2/8)x | | X+.06X=7208 | | 5m^2+12m+7=0 | | .67z-3=-.67z-15 | | 4x^2+4w+1=81 | | 4x+4+6x= | | X*x+((x+10)*(x+10))=250 | | x^3-64x^4=0 | | 216-2x+3x+16=180 |

Equations solver categories