Question

1) Factorise the following algebraic expression by regrouping:
3x2 + 9x2y + 5xy + 15y2 x​

Answer 1

Answer:

(3x^2 +5xy) (1+3y)

Step-by-step explanation:

Grouping 3x^2 , 9x^2y ; 5xy , 15y^2x

3x^2 (1 + 3y)  + 5xy (1 +3y)

(3x^2) (1 + 3y)