4=32-8a+a^2

Simple and best practice solution for 4=32-8a+a^2 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 4=32-8a+a^2 equation:


Simplifying
4 = 32 + -8a + a2

Solving
4 = 32 + -8a + a2

Solving for variable 'a'.

Combine like terms: 4 + -32 = -28
-28 + 8a + -1a2 = 32 + -8a + a2 + -32 + 8a + -1a2

Reorder the terms:
-28 + 8a + -1a2 = 32 + -32 + -8a + 8a + a2 + -1a2

Combine like terms: 32 + -32 = 0
-28 + 8a + -1a2 = 0 + -8a + 8a + a2 + -1a2
-28 + 8a + -1a2 = -8a + 8a + a2 + -1a2

Combine like terms: -8a + 8a = 0
-28 + 8a + -1a2 = 0 + a2 + -1a2
-28 + 8a + -1a2 = a2 + -1a2

Combine like terms: a2 + -1a2 = 0
-28 + 8a + -1a2 = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
28 + -8a + a2 = 0

Move the constant term to the right:

Add '-28' to each side of the equation.
28 + -8a + -28 + a2 = 0 + -28

Reorder the terms:
28 + -28 + -8a + a2 = 0 + -28

Combine like terms: 28 + -28 = 0
0 + -8a + a2 = 0 + -28
-8a + a2 = 0 + -28

Combine like terms: 0 + -28 = -28
-8a + a2 = -28

The a term is -8a.  Take half its coefficient (-4).
Square it (16) and add it to both sides.

Add '16' to each side of the equation.
-8a + 16 + a2 = -28 + 16

Reorder the terms:
16 + -8a + a2 = -28 + 16

Combine like terms: -28 + 16 = -12
16 + -8a + a2 = -12

Factor a perfect square on the left side:
(a + -4)(a + -4) = -12

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| -3m+43-2(m-1)=9m-(4m-4)-2m+9 | | 5t^2-17t-40=0 | | 8*X=100000 | | 16x^2-151x+88=0 | | 7r+12-5r=15 | | 0.75x+0.05(20-x)=0.10(136) | | x+15=19+22 | | 25c^2-36d^2=0 | | 81=-3(4y-5) | | 10.1=9.5+x | | y=-2x^2-2x+5 | | 0=-2x^2-2x+5 | | x+93=165 | | -8u+38=-3(u-6) | | 9.5-x=8.7 | | 76-20y=-24 | | 25y^3-10y^2= | | 7+10+x+7+9=41 | | 10x^5-4x^2+14x=0 | | 11n+29=12n | | 3p^2=-5p+8 | | r^(2/5)-5r^(5/2)=0 | | y=50+0.25x | | 0=1-(2cos(2x)) | | (3yx^2-y^3)dx+(xy^2-x^3)dy=0 | | (x+3)(x^2+4)=0 | | 3v^4= | | 2a*b=24 | | 6(2+c)=5(3+c) | | x=(165)(3)(8.34)/0.5 | | 4(x-2)2=28 | | a+-2+3a=8+7a+-6 |

Equations solver categories