Question

[tex]Factorize: 3x + 18x^{2} y–27
(b) 5a + 20b
(c ) 7 + 10( − ) − 8( − )^{2}[/tex]

Answer 1

Step-by-step explanation:

(a) 3x + 18x ^2y - 27

= 3x + 18x^2y - 27

= 3(x + 6x^2y - 9)

(b) 5a + 20b

= (5a + 4b)

(c) 7 + 10 (x + y) - 8 (x + y)^2

Let (x + y) be x

= 7x + 14 - 4x - 8x^2

= 7(1+2 x) - 4x + 1+ 2x)

= (1+2x ) (7 - 4x )

= {1+ 2(x + y) } {7 - 4( x + y)}

= (1+2 x + 2y) (7-4 x-4 y)