3x-2=2x^2+7

Simple and best practice solution for 3x-2=2x^2+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 3x-2=2x^2+7 equation:


Simplifying
3x + -2 = 2x2 + 7

Reorder the terms:
-2 + 3x = 2x2 + 7

Reorder the terms:
-2 + 3x = 7 + 2x2

Solving
-2 + 3x = 7 + 2x2

Solving for variable 'x'.

Reorder the terms:
-2 + -7 + 3x + -2x2 = 7 + 2x2 + -7 + -2x2

Combine like terms: -2 + -7 = -9
-9 + 3x + -2x2 = 7 + 2x2 + -7 + -2x2

Reorder the terms:
-9 + 3x + -2x2 = 7 + -7 + 2x2 + -2x2

Combine like terms: 7 + -7 = 0
-9 + 3x + -2x2 = 0 + 2x2 + -2x2
-9 + 3x + -2x2 = 2x2 + -2x2

Combine like terms: 2x2 + -2x2 = 0
-9 + 3x + -2x2 = 0

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

Divide each side by '-2'.
4.5 + -1.5x + x2 = 0

Move the constant term to the right:

Add '-4.5' to each side of the equation.
4.5 + -1.5x + -4.5 + x2 = 0 + -4.5

Reorder the terms:
4.5 + -4.5 + -1.5x + x2 = 0 + -4.5

Combine like terms: 4.5 + -4.5 = 0.0
0.0 + -1.5x + x2 = 0 + -4.5
-1.5x + x2 = 0 + -4.5

Combine like terms: 0 + -4.5 = -4.5
-1.5x + x2 = -4.5

The x term is -1.5x.  Take half its coefficient (-0.75).
Square it (0.5625) and add it to both sides.

Add '0.5625' to each side of the equation.
-1.5x + 0.5625 + x2 = -4.5 + 0.5625

Reorder the terms:
0.5625 + -1.5x + x2 = -4.5 + 0.5625

Combine like terms: -4.5 + 0.5625 = -3.9375
0.5625 + -1.5x + x2 = -3.9375

Factor a perfect square on the left side:
(x + -0.75)(x + -0.75) = -3.9375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| -8=i-4 | | 5j+13=6j | | 2(x+5)-7x=-5(x+2) | | H(x)=-3+8 | | r(x)=x^4+2x^3-sx^2-6x | | -7+6m=-19+7m | | X/2=20/3 | | (3x+5)*(2x+4)= | | X-10=5+4x | | 3v+2=20 | | -17=n+3 | | 3+9w+1=w-4 | | -3(x+6)-4x=3 | | 7(b+3)= | | 6x+10=1c | | 11-(2v+3)=-2v-8 | | 2n-10+2=-n+10 | | x-3.7=-7.2 | | 2x-4(x-3)=-6+3x-17 | | (2x+3)(4x+7)=0 | | x/26=36 | | -4=p-3 | | -1+2s=-3s+9 | | 9-(2x+3)=-6 | | 6+h=0 | | z-22=44 | | 42y+5=2 | | 21=53+a | | 20+5z=160 | | Fx=1/2x-1 | | 5(2x+3)=4x-27+6x | | -11(-1-x)-6x=7(x+1) |

Equations solver categories