Question

Answer this question please it’s urgent

Answer 1

Answer:

$(a)48s {t}^{2} \\ (b)7 {y}^{2}(2x + 1) \\ (c ) {a}^{4} - 81 {b}^{4} \\ (d)15$

Step-by-step explanation:

Your step-by-step explanation is there in the picture above...

Answer 2

Answer:

hiii mate....

Step-by-step explanation:

hii mate your answer has been shown in the above figure if it helps you please mark my answer is a brain list !!!