x^2+4x+9=2

Simple and best practice solution for x^2+4x+9=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 x^2+4x+9=2 equation:


Simplifying
x2 + 4x + 9 = 2

Reorder the terms:
9 + 4x + x2 = 2

Solving
9 + 4x + x2 = 2

Solving for variable 'x'.

Reorder the terms:
9 + -2 + 4x + x2 = 2 + -2

Combine like terms: 9 + -2 = 7
7 + 4x + x2 = 2 + -2

Combine like terms: 2 + -2 = 0
7 + 4x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-7' to each side of the equation.
7 + 4x + -7 + x2 = 0 + -7

Reorder the terms:
7 + -7 + 4x + x2 = 0 + -7

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

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

The x term is 4x.  Take half its coefficient (2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
4x + 4 + x2 = -7 + 4

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

Combine like terms: -7 + 4 = -3
4 + 4x + x2 = -3

Factor a perfect square on the left side:
(x + 2)(x + 2) = -3

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 11x-13-10x=-5 | | 20x=147 | | -3x+10=0+2x | | x^2+8x+20=8 | | 14x+x^2-480=0 | | 0.12/7.2 | | 3-6-6(45-36x)= | | m/3-1=14 | | 2/5x+y=(1+3/25) | | 2x+16=x | | f(k+2)=3(k+2)+7 | | 3x^2+18x-23=25 | | 3x+10=0+2x | | 0.81t^2=60 | | 2x^4-2x^2=24 | | Z^2+13z-48=0 | | -40/15+27/15 | | 3x+16=3x+16 | | 5/8+3/5+9/10 | | Z(z+13)=4(12) | | 14-8+3+8*(24/8) | | 8c-(3c-15)=35 | | 0.81t^2=40 | | (3x+8)+(9x-2)= | | b^2-b-16=0 | | 8a^2-42a+27=0 | | 3k/5+44=12k/8 | | -35/21+9/21 | | x^2-22x-48= | | 35/21+9/21 | | 18x^3y+3x^2y^2-36xy^2=0 | | -2b+5c=a |

Equations solver categories