Question

factorise: x^2-y^2-8yz-16z^2​

Answer 1

Answer:

Step-by-step explanation:

 x2 - y2 + 8yz - 16z2

Step by step solution :

Step  1  :

Equation at the end of step  1  :

 (((x2) -  (y2)) +  8yz) -  24z2

Step  2  :

Final result :

 x2 - y2 + 8yz - 16z2

Answer 2

Answer:

(x+y+4z)(x-y-4z)

Step-by-step explanation:

• x2-y2-8yz-16z2

= x2 - ( y2 + 16z2 + 8yz )

= x2 - { (y)2 + (4z2) + (2*y*4z) }

= x2 - ( y + 4z )2

= ( x + y + 4z ) ( x - y - 4z )