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
Mathematics · High School · Thu Feb 04 2021
llm
Answered on
We have,
(x8 + 3x6 - 4x4 + 10x) + (2x7 - 4x5 - x3 + 10)
Solving, we get
x8 + 3x6 - 4x4 + 10x + 2x7 - 4x5 - x3 + 10
x8 + 2x7 + 3x6 - 4x5 - 4x4 - x3 + 10x + 10
So, option (D) is correct.