(a+9)(a+2)=0

Simple and best practice solution for (a+9)(a+2)=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 (a+9)(a+2)=0 equation:


Simplifying
(a + 9)(a + 2) = 0

Reorder the terms:
(9 + a)(a + 2) = 0

Reorder the terms:
(9 + a)(2 + a) = 0

Multiply (9 + a) * (2 + a)
(9(2 + a) + a(2 + a)) = 0
((2 * 9 + a * 9) + a(2 + a)) = 0
((18 + 9a) + a(2 + a)) = 0
(18 + 9a + (2 * a + a * a)) = 0
(18 + 9a + (2a + a2)) = 0

Combine like terms: 9a + 2a = 11a
(18 + 11a + a2) = 0

Solving
18 + 11a + a2 = 0

Solving for variable 'a'.

Factor a trinomial.
(9 + a)(2 + a) = 0

Subproblem 1

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

Subproblem 2

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

Solution

a = {-9, -2}

See similar equations:

| p+0.06p=148.4 | | n*5+3-10=30 | | 5x-5=4x+7 | | 15-2x-2=10x+3x+2 | | 4-5x=2(7x-3) | | -8-5n=4m | | 2(-1)+5+3x-3=5x+9 | | 8=-5+x | | 2r+4=2r-5 | | 10D+40=10 | | 25=7+3k-17 | | 13-4x+2=3x-7x+2 | | 2p+3p= | | 1+(-40+5x)=2+-1(x+5) | | 8=-5+8 | | -4.4-1.21z= | | 5x-12+15x-7+9-2x=-15 | | 12-7x-10=x-8x+2 | | t^2-2=0 | | 3a+4(2a-17)=-13 | | 9.99x+.25=113.74 | | 32x-21+-5x+30= | | 1=6p+6-p | | -(3x+2)-(x-1)=(2x-2)-(2x+4) | | 10-3x-1=7+3x+2 | | 1+5(x-8)=2-1(x+5) | | -2=v-6 | | 2x-8=128 | | M=8+3*3 | | 10+4x=46 | | 16=5z-9 | | 9x^2-x+32=0 |

Equations solver categories