2x^2+7x+34=x^2-4

Simple and best practice solution for 2x^2+7x+34=x^2-4 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 2x^2+7x+34=x^2-4 equation:


Simplifying
2x2 + 7x + 34 = x2 + -4

Reorder the terms:
34 + 7x + 2x2 = x2 + -4

Reorder the terms:
34 + 7x + 2x2 = -4 + x2

Solving
34 + 7x + 2x2 = -4 + x2

Solving for variable 'x'.

Reorder the terms:
34 + 4 + 7x + 2x2 + -1x2 = -4 + x2 + 4 + -1x2

Combine like terms: 34 + 4 = 38
38 + 7x + 2x2 + -1x2 = -4 + x2 + 4 + -1x2

Combine like terms: 2x2 + -1x2 = 1x2
38 + 7x + 1x2 = -4 + x2 + 4 + -1x2

Reorder the terms:
38 + 7x + 1x2 = -4 + 4 + x2 + -1x2

Combine like terms: -4 + 4 = 0
38 + 7x + 1x2 = 0 + x2 + -1x2
38 + 7x + 1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
38 + 7x + 1x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-38' to each side of the equation.
38 + 7x + -38 + x2 = 0 + -38

Reorder the terms:
38 + -38 + 7x + x2 = 0 + -38

Combine like terms: 38 + -38 = 0
0 + 7x + x2 = 0 + -38
7x + x2 = 0 + -38

Combine like terms: 0 + -38 = -38
7x + x2 = -38

The x term is 7x.  Take half its coefficient (3.5).
Square it (12.25) and add it to both sides.

Add '12.25' to each side of the equation.
7x + 12.25 + x2 = -38 + 12.25

Reorder the terms:
12.25 + 7x + x2 = -38 + 12.25

Combine like terms: -38 + 12.25 = -25.75
12.25 + 7x + x2 = -25.75

Factor a perfect square on the left side:
(x + 3.5)(x + 3.5) = -25.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| -2(2s-3)-6=-2(5s+9)-3 | | r^2+4r=-1 | | -3(5s-6)-18=-2(9s+5)-2 | | 6x+5y+14=0 | | 7(3n+35)+9(n+1)= | | 0.15x+.05(20-x)=.10(-2) | | 4x-40=5x | | r^2-10r=-17 | | 5x-10=x^3 | | .18(12)+0.03x=0.09(24+x) | | x^2+42x-432=0 | | 16x-3y=24 | | U=h+(k-2)s | | -39=x-61 | | -4y-18=-6y | | (4w+5)=(4w+5) | | -4n+6=-3n-6 | | 5a-5=-6a+-16 | | 7x+x=4000000 | | 7x+x=400 | | 9x^6-24x^5+12x^4=0 | | 4m*5y= | | y^-12/y^-18 | | 0.40x-0.20(x+40)=-0.05(40) | | -x-3x=0 | | -4/9=-t/6 | | 7u/10+3=3u/4 | | 30=x+x+2x-6 | | 9/8a=27 | | v^2+11v+30/3v^2+24v+45 | | 25=x+x+2x-3 | | -4(w+3)-3w=2(w+3) |

Equations solver categories