Question

36y^2-49z^2 factorise the following

Answer 1

Step-by-step explanation:

36y^2 - 49z^2

= (6y)^2 - (7z)^2

= (6y + 7z)*(6y - 7z)

Answer 2

Step-by-step explanation:

Using the formulae $x^{2}-y^{2} =(x-y)(x+y)$

We get,

$36y^{2} -49z^{2}$= 6$y^{2}$-7$z^{2}$

36y^{2} -49z^{2}=(6y-7z)*(6y+7z)