(8a+3)(5a-15)=0

Simple and best practice solution for (8a+3)(5a-15)=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 (8a+3)(5a-15)=0 equation:


Simplifying
(8a + 3)(5a + -15) = 0

Reorder the terms:
(3 + 8a)(5a + -15) = 0

Reorder the terms:
(3 + 8a)(-15 + 5a) = 0

Multiply (3 + 8a) * (-15 + 5a)
(3(-15 + 5a) + 8a * (-15 + 5a)) = 0
((-15 * 3 + 5a * 3) + 8a * (-15 + 5a)) = 0
((-45 + 15a) + 8a * (-15 + 5a)) = 0
(-45 + 15a + (-15 * 8a + 5a * 8a)) = 0
(-45 + 15a + (-120a + 40a2)) = 0

Combine like terms: 15a + -120a = -105a
(-45 + -105a + 40a2) = 0

Solving
-45 + -105a + 40a2 = 0

Solving for variable 'a'.

Factor out the Greatest Common Factor (GCF), '5'.
5(-9 + -21a + 8a2) = 0

Factor a trinomial.
5((-3 + -8a)(3 + -1a)) = 0

Ignore the factor 5.

Subproblem 1

Set the factor '(-3 + -8a)' equal to zero and attempt to solve: Simplifying -3 + -8a = 0 Solving -3 + -8a = 0 Move all terms containing a to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + -8a = 0 + 3 Combine like terms: -3 + 3 = 0 0 + -8a = 0 + 3 -8a = 0 + 3 Combine like terms: 0 + 3 = 3 -8a = 3 Divide each side by '-8'. a = -0.375 Simplifying a = -0.375

Subproblem 2

Set the factor '(3 + -1a)' equal to zero and attempt to solve: Simplifying 3 + -1a = 0 Solving 3 + -1a = 0 Move all terms containing a to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -1a = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1a = 0 + -3 -1a = 0 + -3 Combine like terms: 0 + -3 = -3 -1a = -3 Divide each side by '-1'. a = 3 Simplifying a = 3

Solution

a = {-0.375, 3}

See similar equations:

| 4018=49(p+40) | | 2.25y-12=.25y-4 | | 3=5-2z | | 8(4a+6)= | | 7-6z=-23 | | R(x)=8 | | 100[0.08(p+2)]=0 | | 21+2w=64 | | 11x+94x+5=298 | | -3+y(0)=3 | | 2r-4=5r+8 | | 5.6-z=28 | | y=-4g(x-3)+6 | | X-48=-41 | | x-13=120 | | x-58=14-10x | | -2x-2x=23-7 | | (7x+9)(x-6)=0 | | -3x-5y(0)=15 | | 8x+=9 | | X+10+2x-5x+10=90 | | f(x)=a+0.25a(x-2) | | 7m^2+55m+42=0 | | 2x-2+4x=10x+30 | | 554.99(266.39)= | | p+6=-3p-2 | | 7m^2+55+42=0 | | 3(r+9)-34= | | 4y+2x=-2 | | 39=2x^2+2x | | 4x-2y(0)=-8 | | n-32=58 |

Equations solver categories