x^2+15x+49=3x

Simple and best practice solution for x^2+15x+49=3x 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 x^2+15x+49=3x equation:


Simplifying
x2 + 15x + 49 = 3x

Reorder the terms:
49 + 15x + x2 = 3x

Solving
49 + 15x + x2 = 3x

Solving for variable 'x'.

Reorder the terms:
49 + 15x + -3x + x2 = 3x + -3x

Combine like terms: 15x + -3x = 12x
49 + 12x + x2 = 3x + -3x

Combine like terms: 3x + -3x = 0
49 + 12x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-49' to each side of the equation.
49 + 12x + -49 + x2 = 0 + -49

Reorder the terms:
49 + -49 + 12x + x2 = 0 + -49

Combine like terms: 49 + -49 = 0
0 + 12x + x2 = 0 + -49
12x + x2 = 0 + -49

Combine like terms: 0 + -49 = -49
12x + x2 = -49

The x term is 12x.  Take half its coefficient (6).
Square it (36) and add it to both sides.

Add '36' to each side of the equation.
12x + 36 + x2 = -49 + 36

Reorder the terms:
36 + 12x + x2 = -49 + 36

Combine like terms: -49 + 36 = -13
36 + 12x + x2 = -13

Factor a perfect square on the left side:
(x + 6)(x + 6) = -13

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 35t^2=5t | | 2x+-14=-10 | | $345$120=z | | 9x+8=-7 | | 71/2-8/-2/3*2 | | B-7.65=4.61 | | $345($75+$45)=h | | (5/7)3 | | 6x+12=3x+63 | | 5/4m-2=10 | | -3.5n=8.4 | | 14-(5m+5)=4+4m-13 | | 5x+118+9x+286=180 | | 8(8w)=168 | | 12+3x=114 | | 12y=3x+9 | | 71/2-8/-2/3x2 | | e/7=-5 | | 2+3.05g=5+3.25g | | 6(x-1)/5=-18 | | 2x+-14=-6 | | 6x+156+2x+112=180 | | 3r=4-2 | | 38=22+2x | | 14-(5m-5)=4+4m-13 | | 9w^2-4w=0 | | (4-n)+2(-5n+3)= | | 2/3x^2-34=12 | | 15=12x-9 | | 8-2(7-r)=-(1+3r)+10r | | 6y+24=9x | | 1.2+(-1.2)=0 |

Equations solver categories