Question

simplify. express your answer using positive exponents. (7r)(5r)

Explanation:

Step1: Multiply the coefficients

$7 \times 5 = 35$

Step2: Multiply the variable terms

$r \times r = r^{1+1} = r^2$

Step3: Combine the results

Multiply the product of coefficients and variables

Answer:

$35r^2$