9h^2-16=(3h+4)(3h-4)

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Solution for 9h^2-16=(3h+4)(3h-4) equation: 


Simplifying
9h2 + -16 = (3h + 4)(3h + -4)

Reorder the terms:
-16 + 9h2 = (3h + 4)(3h + -4)

Reorder the terms:
-16 + 9h2 = (4 + 3h)(3h + -4)

Reorder the terms:
-16 + 9h2 = (4 + 3h)(-4 + 3h)

Multiply (4 + 3h) * (-4 + 3h)
-16 + 9h2 = (4(-4 + 3h) + 3h * (-4 + 3h))
-16 + 9h2 = ((-4 * 4 + 3h * 4) + 3h * (-4 + 3h))
-16 + 9h2 = ((-16 + 12h) + 3h * (-4 + 3h))
-16 + 9h2 = (-16 + 12h + (-4 * 3h + 3h * 3h))
-16 + 9h2 = (-16 + 12h + (-12h + 9h2))

Combine like terms: 12h + -12h = 0
-16 + 9h2 = (-16 + 0 + 9h2)
-16 + 9h2 = (-16 + 9h2)

Add '16' to each side of the equation.
-16 + 16 + 9h2 = -16 + 16 + 9h2

Combine like terms: -16 + 16 = 0
0 + 9h2 = -16 + 16 + 9h2
9h2 = -16 + 16 + 9h2

Combine like terms: -16 + 16 = 0
9h2 = 0 + 9h2
9h2 = 9h2

Add '-9h2' to each side of the equation.
9h2 + -9h2 = 9h2 + -9h2

Combine like terms: 9h2 + -9h2 = 0
0 = 9h2 + -9h2

Combine like terms: 9h2 + -9h2 = 0
0 = 0

Solving
0 = 0

Couldn't find a variable to solve for.

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

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