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Which student wrote an expression equivalent to 6x + 4x to the third power? Choose all that apply.

A: Anne wrote (6 + x) + (4 + x to the third power).
B: Bart wrote 6x (1 + 2/3x to the second power).
C: Cassie wrote 3x + 3x + 2x to the third power + 2x to the third power.
D: David wrote x(6 + 4x to the second power).
E: Edgar wrote 10 + x to the fourth power

User Drakalex
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1 Answer

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Bart and David are correct.
Bart
6x(1+2/3^3)
6x * 1 = 6x
6x *2/3^3 = 4x^3
6x * 4x^3

David
x(6+4x^2)
x*6 = 6x
x*4x^2 = 4x^3
6x+4x^3

User Larsks
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