Question

. Factorise.
(vi) 15pq +15+9q+25p
(v) z-7+7xy-xyz​

Answer 1

Answer:

(vi) 15pq+15+9q+25p

= p(15q+15+9q+25)

= 15q+9q+40

=

Answer 2

Answer:

3×5×p×q+3×5+3×3q+5×5×p

(15pq+9q)+(15+25p)

3q is common

3q(5p+3)+5(3+5p)

5p+3 is common

(3q+5)(5p+3)

7xy-7+z-xyz

7(xy-1)+z(xy-1)

(7+z)(xy-1)