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30. Find the value of expression 20m2 + 30m + 40 when a)m = -3 b)m= - 4 c) m = 3

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30. Find the value of expression 20m2 + 30m + 40 when a)m = -3 b)m= - 4 c) m = 3...

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30. Find the value of expression 20m2 + 30m + 40 when a)m = -3 b)m= - 4 c) m = 3​

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30. Find the value of expression 20m2 + 30m + 40 when a)m = -3 b)m= - 4 c) m = 3