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Simplifying
4f * 7f = 0
Reorder the terms for easier multiplication:
4 * 7f * f = 0
Multiply 4 * 7
28f * f = 0
Multiply f * f
28f2 = 0
Solving
28f2 = 0
Solving for variable 'f'.
Move all terms containing f to the left, all other terms to the right.
Divide each side by '28'.
f2 = 0
Simplifying
f2 = 0
Take the square root of each side:
f = {0}
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