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Simplifying
(10a)(4a) = 0
Remove parenthesis around (10a)
10a(4a) = 0
Remove parenthesis around (4a)
10a * 4a = 0
Reorder the terms for easier multiplication:
10 * 4a * a = 0
Multiply 10 * 4
40a * a = 0
Multiply a * a
40a2 = 0
Solving
40a2 = 0
Solving for variable 'a'.
Move all terms containing a to the left, all other terms to the right.
Divide each side by '40'.
a2 = 0.0
Simplifying
a2 = 0.0
Take the square root of each side:
a = {0.0}
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