Question
Multiply $: (3x – 5y)$ and $(x + 6y)$
✓
Answer
$(3x − 5y) \times (x + 6y)$
$= x \times (3x − 5y) + 6y (3x − 5y)$
$= 3x^2 − 5xy + 18xy − 30y^2$
$= 3x^2 + 13xy − 30y^2$
$= x \times (3x − 5y) + 6y (3x − 5y)$
$= 3x^2 − 5xy + 18xy − 30y^2$
$= 3x^2 + 13xy − 30y^2$
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