Question

Factorise
(i) 25x2 - 36y2
(ii) 2ab - a? b2 + 1
(iii) 36a2 - 12a + 1 - 25b2
(ivya - 8164
(1/a2b4-a4b12
(vi) 4x2 - 9y2 - 2x - 3y
​

Answer 1

(i)

$2 {x}^{2} - 36 {y}^{2}$

$(2x - 36y {)}^{2}$

$(4 {x}^{2} - 1296 {y}^{2})$

(vi)

(vi)

$4 {x}^{2} - 9 {y}^{2} - 2x - 3y$

$4 {x}^{2} - 2x - 9 {y}^{2} - 3y$

$2x(2x - 1) - 3y(3y + 1)$

$(2x - 3y)(2x - 1)(3y + 1)$