(5a+7a)(5a+7a)=12a^2

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Solution for (5a+7a)(5a+7a)=12a^2 equation: 


Simplifying
(5a + 7a)(5a + 7a) = 12a2

Combine like terms: 5a + 7a = 12a
(12a)(5a + 7a) = 12a2

Remove parenthesis around (12a)
12a(5a + 7a) = 12a2

Combine like terms: 5a + 7a = 12a
12a(12a) = 12a2

Remove parenthesis around (12a)
12a * 12a = 12a2

Reorder the terms for easier multiplication:
12 * 12a * a = 12a2

Multiply 12 * 12
144a * a = 12a2

Multiply a * a
144a2 = 12a2

Solving
144a2 = 12a2

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Add '-12a2' to each side of the equation.
144a2 + -12a2 = 12a2 + -12a2

Combine like terms: 144a2 + -12a2 = 132a2
132a2 = 12a2 + -12a2

Combine like terms: 12a2 + -12a2 = 0
132a2 = 0

Divide each side by '132'.
a2 = 0

Simplifying
a2 = 0

Take the square root of each side:
a = {0}

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