(3u^2-4u+6)+(-u^2+5u+7)=

Simple and best practice solution for (3u^2-4u+6)+(-u^2+5u+7)= 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 (3u^2-4u+6)+(-u^2+5u+7)= equation: 


Simplifying
(3u2 + -4u + 6) + (-1u2 + 5u + 7) = 0

Reorder the terms:
(6 + -4u + 3u2) + (-1u2 + 5u + 7) = 0

Remove parenthesis around (6 + -4u + 3u2)
6 + -4u + 3u2 + (-1u2 + 5u + 7) = 0

Reorder the terms:
6 + -4u + 3u2 + (7 + 5u + -1u2) = 0

Remove parenthesis around (7 + 5u + -1u2)
6 + -4u + 3u2 + 7 + 5u + -1u2 = 0

Reorder the terms:
6 + 7 + -4u + 5u + 3u2 + -1u2 = 0

Combine like terms: 6 + 7 = 13
13 + -4u + 5u + 3u2 + -1u2 = 0

Combine like terms: -4u + 5u = 1u
13 + 1u + 3u2 + -1u2 = 0

Combine like terms: 3u2 + -1u2 = 2u2
13 + 1u + 2u2 = 0

Solving
13 + 1u + 2u2 = 0

Solving for variable 'u'.

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

Divide each side by '2'.
6.5 + 0.5u + u2 = 0

Move the constant term to the right:

Add '-6.5' to each side of the equation.
6.5 + 0.5u + -6.5 + u2 = 0 + -6.5

Reorder the terms:
6.5 + -6.5 + 0.5u + u2 = 0 + -6.5

Combine like terms: 6.5 + -6.5 = 0.0
0.0 + 0.5u + u2 = 0 + -6.5
0.5u + u2 = 0 + -6.5

Combine like terms: 0 + -6.5 = -6.5
0.5u + u2 = -6.5

The u term is 0.5u.  Take half its coefficient (0.25).
Square it (0.0625) and add it to both sides.

Add '0.0625' to each side of the equation.
0.5u + 0.0625 + u2 = -6.5 + 0.0625

Reorder the terms:
0.0625 + 0.5u + u2 = -6.5 + 0.0625

Combine like terms: -6.5 + 0.0625 = -6.4375
0.0625 + 0.5u + u2 = -6.4375

Factor a perfect square on the left side:
(u + 0.25)(u + 0.25) = -6.4375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| (3u^2-5u+6)+(-u^2+5u+7)= | | 16+(8a-2x)=4 | | 3x^2+9x+33=0 | | 4(v+6)(-v-7)=0 | | (y+8)(y+1)=0 | | p=-x^2+64x+82 | | 6x^2-31x-32=0 | | 3xy*3y= | | 5y^2+y+2=0 | | 2x(81-54x+8x^2)=0 | | 13-y=5 | | 1+(52-56)= | | 50*2= | | -10+2P=110-P | | X-4y(2x-10)=5 | | X-4(2x-10)=5 | | 2x^2-3x-6xy+9y=0 | | y+30=46 | | 7+17x= | | 4h+5h=108 | | 18=4h-2h | | (m+2)x^2-2mx+1=0 | | 40-p=2p-8 | | h=-81t^2+at+p | | 112-P=2P-8 | | 2(2(-5)+10)+2((-5)+3)=0 | | 1=2x+2 | | 2(2x+10)+2(x+3)=0 | | 7x-6-3x+6=12x+6 | | 2(2x+30)+x=180 | | y+4x=12y+10 | | 5r+9=49 |

Equations solver categories