(-a^2+2)-(a^2-4)+(6a^2-5a*3)=

Simple and best practice solution for (-a^2+2)-(a^2-4)+(6a^2-5a*3)= 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^2+2)-(a^2-4)+(6a^2-5a*3)= equation:


Simplifying
(-1a2 + 2) + -1(a2 + -4) + (6a2 + -5a * 3) = 0

Reorder the terms:
(2 + -1a2) + -1(a2 + -4) + (6a2 + -5a * 3) = 0

Remove parenthesis around (2 + -1a2)
2 + -1a2 + -1(a2 + -4) + (6a2 + -5a * 3) = 0

Reorder the terms:
2 + -1a2 + -1(-4 + a2) + (6a2 + -5a * 3) = 0
2 + -1a2 + (-4 * -1 + a2 * -1) + (6a2 + -5a * 3) = 0
2 + -1a2 + (4 + -1a2) + (6a2 + -5a * 3) = 0

Reorder the terms for easier multiplication:
2 + -1a2 + 4 + -1a2 + (6a2 + -5 * 3a) = 0

Multiply -5 * 3
2 + -1a2 + 4 + -1a2 + (6a2 + -15a) = 0

Reorder the terms:
2 + -1a2 + 4 + -1a2 + (-15a + 6a2) = 0

Remove parenthesis around (-15a + 6a2)
2 + -1a2 + 4 + -1a2 + -15a + 6a2 = 0

Reorder the terms:
2 + 4 + -15a + -1a2 + -1a2 + 6a2 = 0

Combine like terms: 2 + 4 = 6
6 + -15a + -1a2 + -1a2 + 6a2 = 0

Combine like terms: -1a2 + -1a2 = -2a2
6 + -15a + -2a2 + 6a2 = 0

Combine like terms: -2a2 + 6a2 = 4a2
6 + -15a + 4a2 = 0

Solving
6 + -15a + 4a2 = 0

Solving for variable 'a'.

Begin completing the square.  Divide all terms by
4 the coefficient of the squared term: 

Divide each side by '4'.
1.5 + -3.75a + a2 = 0

Move the constant term to the right:

Add '-1.5' to each side of the equation.
1.5 + -3.75a + -1.5 + a2 = 0 + -1.5

Reorder the terms:
1.5 + -1.5 + -3.75a + a2 = 0 + -1.5

Combine like terms: 1.5 + -1.5 = 0.0
0.0 + -3.75a + a2 = 0 + -1.5
-3.75a + a2 = 0 + -1.5

Combine like terms: 0 + -1.5 = -1.5
-3.75a + a2 = -1.5

The a term is -3.75a.  Take half its coefficient (-1.875).
Square it (3.515625) and add it to both sides.

Add '3.515625' to each side of the equation.
-3.75a + 3.515625 + a2 = -1.5 + 3.515625

Reorder the terms:
3.515625 + -3.75a + a2 = -1.5 + 3.515625

Combine like terms: -1.5 + 3.515625 = 2.015625
3.515625 + -3.75a + a2 = 2.015625

Factor a perfect square on the left side:
(a + -1.875)(a + -1.875) = 2.015625

Calculate the square root of the right side: 1.419727086

Break this problem into two subproblems by setting 
(a + -1.875) equal to 1.419727086 and -1.419727086.

Subproblem 1

a + -1.875 = 1.419727086 Simplifying a + -1.875 = 1.419727086 Reorder the terms: -1.875 + a = 1.419727086 Solving -1.875 + a = 1.419727086 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '1.875' to each side of the equation. -1.875 + 1.875 + a = 1.419727086 + 1.875 Combine like terms: -1.875 + 1.875 = 0.000 0.000 + a = 1.419727086 + 1.875 a = 1.419727086 + 1.875 Combine like terms: 1.419727086 + 1.875 = 3.294727086 a = 3.294727086 Simplifying a = 3.294727086

Subproblem 2

a + -1.875 = -1.419727086 Simplifying a + -1.875 = -1.419727086 Reorder the terms: -1.875 + a = -1.419727086 Solving -1.875 + a = -1.419727086 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '1.875' to each side of the equation. -1.875 + 1.875 + a = -1.419727086 + 1.875 Combine like terms: -1.875 + 1.875 = 0.000 0.000 + a = -1.419727086 + 1.875 a = -1.419727086 + 1.875 Combine like terms: -1.419727086 + 1.875 = 0.455272914 a = 0.455272914 Simplifying a = 0.455272914

Solution

The solution to the problem is based on the solutions from the subproblems. a = {3.294727086, 0.455272914}

See similar equations:

| 5x+140= | | .7=.35 | | 4s-12=5s+15 | | (4x^2+9x-2)+(4x^2+4x+19)-(8x^2-14)= | | 3(2x-1)=3x+1/2 | | 8K+1-1=17 | | 3(12-x)+6x=10 | | x+4=5x-20 | | 96=3(4x-8) | | 5(m-4)+6m=5(m+3)-7 | | -10x^2+6x+3=0 | | 2(3x+4)+2x=11x-4+x | | Y=12x^2+24 | | 8x+1=6(1+3x)-2(5x-6) | | 3(2x-7+5x)=x-1 | | F(x)=12x^2+24 | | H=-16t^2+128t+5 | | -6a-36=-4(3a+3) | | 3x+129= | | -7y=-21+28 | | 1/2(x-5)=x-2 | | 4x+3/-5x-3=-1/2 | | 6v-5+5=6v | | (2x^2+6x-7)+(4x^2+2x+17)-(6x^2-11)= | | -4(4-7b)-3(4b-6)=-30 | | 6(x-2)-2x=-40 | | -147=-7(3-3r) | | A=3X(-1) | | 1+5m+7=-7 | | t*-1.5=8 | | -4*-1.5=6 | | -8(p-5)=109.6 |

Equations solver categories