Question

Factorise
(x+2y)^4-1​

Answer 1

Answer:

x^3+6x^2y+6xy^2+8y^3

Step-by-step explanation:

(x+2y)^4-1

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

=x^3+6x^2y+6xy^2+8y^3

Answer 2

Answer:

(x+2y)⁴-1

x⁴+(2y)⁴-1

x⁴+16y-1

16yx⁴-1

Step-by-step explanation:

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