T=40(r^2-2r)

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Solution for T=40(r^2-2r) equation: 


Simplifying
T = 40(r2 + -2r)

Reorder the terms:
T = 40(-2r + r2)
T = (-2r * 40 + r2 * 40)
T = (-80r + 40r2)

Solving
T = -80r + 40r2

Solving for variable 'T'.

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

Simplifying
T = -80r + 40r2

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