Advanced Math practice question

Answer: A. 10x³

Multiply the coefficients and add the exponents: 10x¹⁺².

Why the other answers are wrong

B. 10x²

The exponents add to 3, not 2.

C. 7x³

The coefficients multiply to 10, not 7.

D. 10x

The x's must be multiplied too.

More Advanced Math questions

• Easy–Medium
  If f(x) = 2x² − 3, what is f(4)?
• Easy–Medium
  Which expression is equivalent to (2x³)(3x⁴)?
• Easy–Medium
  What are the solutions to x² − 16 = 0?
• Easy–Medium
  Which expression is equivalent to (x + 5)²?
• Easy–Medium
  For x ≠ 0, which expression is equivalent to (x² + 3x) / x?
• Easy–Medium
  What are the solutions to the equation 2(x − 3)² − 32 = 0 ?