(7r)(5r+2r)=

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Solution for (7r)(5r+2r)= equation:


Simplifying
(7r)(5r + 2r) = 0

Remove parenthesis around (7r)
7r(5r + 2r) = 0

Combine like terms: 5r + 2r = 7r
7r(7r) = 0

Remove parenthesis around (7r)
7r * 7r = 0

Reorder the terms for easier multiplication:
7 * 7r * r = 0

Multiply 7 * 7
49r * r = 0

Multiply r * r
49r2 = 0

Solving
49r2 = 0

Solving for variable 'r'.

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

Divide each side by '49'.
r2 = 0

Simplifying
r2 = 0

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

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