Math, asked by chinesebaro123, 10 months ago

if x = 2, y = -7 then the value of 27x^3 + 27x^3.y 9xy^2y^3 is equal to​

Answers

Answered by saymasanil
0

Answer:

-1

Step-by-step explanation:

27x^3 + 27x^2y + 9xy^2 + y^3

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

= ( 3x + y) ^3

= [ 3×2 + (-7) ] ^3

= (6-7)^3

= (-1)^3

= -1

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