4x-7=x^2

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


Simplifying
4x + -7 = x2

Reorder the terms:
-7 + 4x = x2

Solving
-7 + 4x = x2

Solving for variable 'x'.

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

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
7 + -4x + x2 = 0

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:

| .3=0.2(c-1) | | -6(2x-5)+4=-12+34 | | 7a+4a+6=73 | | 1.8(1.5+a)=7.2 | | 11c-88=-22-(-8c) | | 5w-35=65 | | -T+5=T-15 | | 3x+11+110=6x+4 | | 3(6+r)=33 | | 1x(x-7)=30 | | 2x^2+5x-8=-13 | | -6(2y+2)=12 | | 5x^2=-6x+1 | | 16t-15=11t-11 | | (x-2)=0.8(4-y) | | (-3)(5)(10)(-2)(5)= | | 5a+5=64a-16+80 | | x-9=-x+13 | | z/2+5=7 | | x-4=x-5 | | x-4=-x-5 | | -6(3x-5)+5=-18x+35 | | 7x+4=-7x+38 | | 5x=3x-20 | | -3+-12= | | 5x-20=3x+13 | | 7x+4=7x+38 | | x+40=-60 | | 0+-3= | | 1/2(8x+2)+25= | | -9-6a-9=-7a-28 | | 1/4(16x+12)+1= |

Equations solver categories