# How do you multiply (7x-6) (5x+6)?

Jun 25, 2015

I found:
$= 35 {x}^{2} + 12 x - 36$

#### Explanation:

You can use the Distributive Law to get:
$\left(7 x - 6\right) \left(5 x + 6\right) = \left(7 x \cdot 5 x\right) + \left(7 x \cdot 6\right) + \left(- 6 \cdot 5 x\right) + \left(- 6 \cdot 6\right) =$
$= 35 {x}^{2} + 42 x - 30 x - 36 =$
Collect similar terms to get:
$= 35 {x}^{2} + 12 x - 36$