15a+9-15a^2=0

Simple and best practice solution for 15a+9-15a^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 15a+9-15a^2=0 equation:


Simplifying
15a + 9 + -15a2 = 0

Reorder the terms:
9 + 15a + -15a2 = 0

Solving
9 + 15a + -15a2 = 0

Solving for variable 'a'.

Factor out the Greatest Common Factor (GCF), '3'.
3(3 + 5a + -5a2) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(3 + 5a + -5a2)' equal to zero and attempt to solve: Simplifying 3 + 5a + -5a2 = 0 Solving 3 + 5a + -5a2 = 0 Begin completing the square. Divide all terms by -5 the coefficient of the squared term: Divide each side by '-5'. -0.6 + -1a + a2 = 0 Move the constant term to the right: Add '0.6' to each side of the equation. -0.6 + -1a + 0.6 + a2 = 0 + 0.6 Reorder the terms: -0.6 + 0.6 + -1a + a2 = 0 + 0.6 Combine like terms: -0.6 + 0.6 = 0.0 0.0 + -1a + a2 = 0 + 0.6 -1a + a2 = 0 + 0.6 Combine like terms: 0 + 0.6 = 0.6 -1a + a2 = 0.6 The a term is -1a. Take half its coefficient (-0.5). Square it (0.25) and add it to both sides. Add '0.25' to each side of the equation. -1a + 0.25 + a2 = 0.6 + 0.25 Reorder the terms: 0.25 + -1a + a2 = 0.6 + 0.25 Combine like terms: 0.6 + 0.25 = 0.85 0.25 + -1a + a2 = 0.85 Factor a perfect square on the left side: (a + -0.5)(a + -0.5) = 0.85 Calculate the square root of the right side: 0.921954446 Break this problem into two subproblems by setting (a + -0.5) equal to 0.921954446 and -0.921954446.

Subproblem 1

a + -0.5 = 0.921954446 Simplifying a + -0.5 = 0.921954446 Reorder the terms: -0.5 + a = 0.921954446 Solving -0.5 + a = 0.921954446 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + a = 0.921954446 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + a = 0.921954446 + 0.5 a = 0.921954446 + 0.5 Combine like terms: 0.921954446 + 0.5 = 1.421954446 a = 1.421954446 Simplifying a = 1.421954446

Subproblem 2

a + -0.5 = -0.921954446 Simplifying a + -0.5 = -0.921954446 Reorder the terms: -0.5 + a = -0.921954446 Solving -0.5 + a = -0.921954446 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + a = -0.921954446 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + a = -0.921954446 + 0.5 a = -0.921954446 + 0.5 Combine like terms: -0.921954446 + 0.5 = -0.421954446 a = -0.421954446 Simplifying a = -0.421954446

Solution

The solution to the problem is based on the solutions from the subproblems. a = {1.421954446, -0.421954446}

Solution

a = {1.421954446, -0.421954446}

See similar equations:

| -3x+5=-8(x+5) | | 6*279= | | -8(w-6)=-3w+8 | | 17=3g+2 | | 1=17-2f | | 10=2w-2 | | 35*699= | | -10x+170=-10 | | 8x+120=40 | | 1+3c=19 | | 13=2k+3 | | y=-3/7x-4/7 | | 11=4q-5 | | 2y-6(3-y)=6 | | 20=12+2p | | 2=s/4-1 | | -12k+4=8k-6 | | 2-2j=4 | | 4(X-4)=7(x+2) | | 36-5(16-11)=n | | x/.5=31 | | 4a-4(14-a)a=7 | | 3w+5=8 | | 6-(-5r)=8r-3 | | 3x+24=4x+5 | | M+4.5=12 | | 5[4-(7x-3)]+6x=0 | | 5x+16=6x-3 | | 9.4=-t/4.5 | | 15p+16q+p-7q-6p= | | 60+0.10x=0.18x | | y/13-2=5 |

Equations solver categories