Question

Find the product of
3 X + 5 - 6y) and (3x+7+ 3y +82)
​

Answer 1

Step-by-step explanation:

$(3x - 6y + 5)(3x + 3y + 89) \\ = 9 {x}^{2} + 9xy + 267x - 18xy - 18 {y}^{2} - \\ \: \: \: \: \: 534y + 15x + 15y + 445$

$= 9 {x}^{2} - 18 {y}^{2} - 9xy + 282x \\ \: \: \: + 549y + 445$