Question

Factorise
a(2a-b)-b^2

Answer 1

Answer:

Step-by-step explanation:$(2a-b)(2a+b)-ab$

$a(2a-b)-b^{2} \\\= (2a^{2}-ab)-b^{2} \\\= 2a^{2}-b^{2}-ab\\ \\=(2a+b)(2a-b)-ab$

Answer 2

Answer:

Step-by-step explanation: