Simplify the expression. Assume that all variables represent non-negative real numbers.x + 7x2 - 5

A. 9x3
B. 9x2
C. 7x3 + 2x2
D. 7x3 + 7x2 - 5x4


Answer: B

Mathematics

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A. 0.08
B. 0.8; 83
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A.  lot
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What will be an ideal response?

Mathematics