Question

factorise (20/3)² -(7/3²)​

Answer 1

Step-by-step explanation:

${ \frac{20}{3} }^{2} - { \frac{7}{3} }^{2} \\ \frac{400}{9} - \frac{49}{3} \\ \frac{400 - 49}{3} = \frac{351}{3} = 117$