Question

multiply the expression a+b, 7a^2b^2

Answer 1

(a+b) (7a²b²) = 7a³b²+7a²b³

Answer 2

$(a + b) \times (7 {a}^{2} \times {b}^{2} ) \\ = (a + b)(7 {(ab)}^{2} ) \\ = 7{a}^{3} {b}^{2} + 7{a}^{2} {b}^{3}$