Question

simplify. express your answer using positive exponents. 9d^7 · 8d

Explanation:

Step1: Multiply coefficients

$8\times7 = 56$

Step2: Use exponent - rule for multiplying like - bases

$d^{7}\cdot d^{9}=d^{7 + 9}=d^{16}$ (using the rule $a^{m}\cdot a^{n}=a^{m + n}$)

Step3: Combine results

$56d^{16}$

Answer:

$56d^{16}$