(x-4)*(x+4)+16=x^2

Simple and best practice solution for (x-4)*(x+4)+16=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 (x-4)*(x+4)+16=x^2 equation:


Simplifying
(x + -4)(x + 4) + 16 = x2

Reorder the terms:
(-4 + x)(x + 4) + 16 = x2

Reorder the terms:
(-4 + x)(4 + x) + 16 = x2

Multiply (-4 + x) * (4 + x)
(-4(4 + x) + x(4 + x)) + 16 = x2
((4 * -4 + x * -4) + x(4 + x)) + 16 = x2
((-16 + -4x) + x(4 + x)) + 16 = x2
(-16 + -4x + (4 * x + x * x)) + 16 = x2
(-16 + -4x + (4x + x2)) + 16 = x2

Combine like terms: -4x + 4x = 0
(-16 + 0 + x2) + 16 = x2
(-16 + x2) + 16 = x2

Reorder the terms:
-16 + 16 + x2 = x2

Combine like terms: -16 + 16 = 0
0 + x2 = x2
x2 = x2

Add '-1x2' to each side of the equation.
x2 + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
0 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
0 = 0

Solving
0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

See similar equations:

| 7logX=13 | | 77.1=b/6 | | 81x^2= | | 6=9y-5y-6 | | (x-4)*(x+4)=35 | | p-9=8 | | (6x^2-7x^3)= | | sin(x)=.3 | | x/6-x/7=2/7 | | f(x)=x^2-3x+6 | | Z(z-1)-20=0 | | 4/5x-13=-1 | | x^3-6x^2-5=0 | | 0.5x-0.9(8-3x)=0.6(x-7) | | x(15)=3 | | -5b+11=-4 | | 5.3x+.35=3.02x-2.5 | | 2(6x+6)-(12x-18)=36-12-18x+12 | | 36=9-3h | | 7(1x-9)=-122 | | 6k+31=1 | | (x+90)+(x)+(x-15)=180 | | x^2-ab+b^2=0 | | 8x-30=64+6x | | 6k-31=1 | | 6-1/2x=1?4x | | 11b+10=43 | | -55+-6=0 | | -4+-7+5=0 | | 9/11-3/11=3/11 | | 3s-9=3 | | 3x-2x=4x+3 |

Equations solver categories