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Robertson
Mathematics
27 June, 23:45
What is 2n square plus 3n negative 9
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Paityn Mayo
28 June, 00:07
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2n plus 3n is 5n. But to add the exponents you minus 2 by 9, which equals negative 7. So the answer should be 5n negative 7.
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Taryn Decker
28 June, 00:10
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2n + 3n = 5n
The 2 and 3 combine to get 5 and N just remains the same
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