Question

Factorise 72x2 - 98y2​

Answer 1

Answer:

$144-98y_{2}$

Step-by-step explanation:

$72 \times 2-98y2$

Multiply 72 and 2 to get 144.

$144-98y_{2}$

Answer 2

Step-by-step explanation:

using identity a²+b² = (a+b) (a-b)