Which expression is equivalent to open paren 5 x cubed close paren times 4 x cubed ?
Answer
A
8 comma 000 x to the 6th power
B
20 x to the 6th power
C
320 x to the 6th power
D
500 x to the 6th power
Explanation
Multiply the coefficients: 5 × 4 = 20. When multiplying powers with the same base, add the exponents: x³ × x³ = x⁶. So the equivalent expression is 20x⁶, choice B.
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