Mathematics, 03.03.2021 18:40 Idontreallycare16
Emily collects and trades rocks. She starts with 8x^2 rocks, for some number x, and then buys 7x^2. She then trades away x^2, then gives away 9x, and finally sells another 5 rocks. Write an expression for the number of rocks Emily now has in standard form.
A. β9x + 8x^2 + 7x^4 β 5 β x^5
B. 8x^2 β 5 + 7x^4 β 9x β x^5
C. βx^5 + 7x^4 + 8x^2 β 9x β 5
D. β5 β 9x + 8x^2 + 7x^4 β x^5
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Emily collects and trades rocks. She starts with 8x^2 rocks, for some number x, and then buys 7x^2....
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