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

Answer»

(3x^2 +5XY) (1+3Y)Step-by-step EXPLANATION:GROUPING 3x^2 , 9x^2y ; 5xy , 15y^2x3x^2 (1 + 3y)  + 5xy (1 +3y)(3x^2) (1 + 3y)



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