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3 years ago

Let n=5 what is the value of the expression 9n^2 -2 -n? please help

Mathematics

2 answers:

dimaraw [331]3 years ago

7 0

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Substitute 5 into 'n'

9(5)^2 - 2 - 5 = 218

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Molodets [167]3 years ago

3 0

9(5)^2 - 2 - (5)

9(25) - 2 - 5

225 - 2 - 5

223 - 5

218

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