Mathematics, 30.09.2019 03:30 lizzy2951

Find the sum: (x8 + 3x6 - 4x4 + 10x) + (2x7 - 4x5 - x3 + 10).

a. 3x7 - 7x5 - x2 + 20
b. x8 + 2x7 + 3x6 - 4x5 - 4x4 + x2 + 9x + 10
c. 2x7 + 4x6 + 2x5 - 2x4 - 5x3 - x2 + 17x + 17
d. x8 + 2x7 + 3x6 - 4x5 - 4x4 - x3 + 10x + 10

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Find the sum: (x8 + 3x6 - 4x4 + 10x) + (2x7 - 4x5 - x3 + 10).

a. 3x7 - 7x5 - x2 + 20

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