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01-02-2019
Mathematics

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Which expression is equivalent to (5x^7+7x^8) − (4x^4−2x^8)?

A. 9x^8 + 5x^7−4x^4
B. 3x^8 + 7x^7
C. 12x^8 − 2x^4
D. 5x^8 + 5x^7 + 4x^4

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01-02-2019

simplify step-by-step
[tex]5 {x}^{7} + 7 {x}^{8} - (4 {x}^{4} - 2 {x}^{8} )[/tex]
ANSWER
[tex]9 {x}^{8} + 5 {x}^{7} - 4 {x}^{4} [/tex]

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