Đáp án`+`Giải thích các bước giải:

ta có:

`G = (5a - 3) (3b - 5) - (3a - 5) (5b - 3)`

`G = 15ab - 9b - 25a + 15 - 15ab + 9a + 25b - 15`

`G = (15ab - 15ab) + (-25a + 9a) + (-9b + 25b) + (15 - 15)`

`G = -16a + 16b`

`G = 16 (b - a) \vdots 16`

Vậy `G = (5a - 3) (3b - 5) - (3a - 5) (5b - 3) \vdots 16`

꧁$\color{#1c1c1c}{\text{G}}$$\color{#2a2043}{\text{o}}$$\color{#291063}
{\text{d}}$$\color{#53008}{\text{M}}$$\color{#6b28ac}
{\text{a}}$$\color{#8c4ebd}{\text{t}}$$\color{#B592D6}
{\text{h}}$$\color{#ceaedf}{\text{s}}$꧂