which two expressions are equivalent?

a) x+x+x and x³

b) 14x + 10 - 2x and 16x + 10

c) 12x + 16x and 4(3x+4x)

d) 12x² + 5x + 10 and 17x² + 10

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Answer:

c

Step-by-step explanation:

(4×3x)+(4×4x)=

12x+16x