The value of (-10 m² n⁶) x (-20mn⁵) at m=1 and n=-1
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(-10 m² n⁶) x (-20mn⁵)
=> [-10 (1)² (-1)⁶] * [-20 (1) (-1)⁵]
=> [(-10) * 1 * 1] * [(-20) * 1 * (-1)]
=> -10 * 20
=> -200
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