Add.7x8 - 6x3 + 2x2 + 9  and  9x7 + 4x3 - 5x

A. 7x8 + 9x7+ 2x3 + 2x2 - 5x + 9
B. 16x8 - 10x3 + 2x2 - 5x + 9
C. 16x8- 2x3 + 2x2 - 5x + 9
D. 7x8 + 9x7- 2x3 + 2x2 - 5x + 9


Answer: D

Mathematics

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