Question

Factorise and divide as directed:
7x²- 63 x by 7 (x-3)​

Answer 1

Answer:

7(x + 3)

Step-by-step explanation:

$\frac{7 {x}^{2} - 63}{x - 3} \\ = ) \frac{7( {x}^{2} - 9) }{x - 3} \\ = ) \frac{7( {(x)}^{2} - {(3)}^{2} )}{x - 3} \\ {a}^{2} - {b}^{2} =( a +b) ( a- b) \\ = ) \frac{7(x - 3)(x + 3)}{x - 3} \\ = ) 7(x + 3)$

Hope it helped