Perform the indicated operation.(4x5 - 9x4 - 6x3 - 5) + (4x5 + 7x4 - 7x3 + 4)

A. -7x24 - 1
B. 8x10 - 2x8 - 13x6 - 1
C. 2x5 + 2x4 + 8x3 - 5
D. 8x5 - 2x4 - 13x3 - 1


Answer: D

Mathematics

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Tell whether the expression is a monomial. If it is, name the variable(s) and coefficient, and give the degree of the monomial.5x2y5

A. Monomial; variables x, y; coefficient 5; degree 5 B. Monomial; variables x, y; coefficient 5; degree 7 C. Monomial; variables x, y; coefficient 5; degree 2 D. Not a monomial

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Write the expression in standard form.

A. -  + i
B.  + i
C.  - i
D. -  - i

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Simplify.

A.
B.
C.
D.

Mathematics