Question

please give me answer of second one please ​

Answer 1

Answer:

4x*9x + 5y*9x + 4x*7y + 5y*7y

36x² + 45xy + 28xy + 35y²

36x² + 73xy + 35y²

Answer 2

$(4x + 5y) (9x + 7y)$

${36x}^{2} + 28xy \: + 45xy \: + {35y}^{2}$

${36x}^{2} + 73xy \: + {35y}^{2}$