If 2x + 3y = 12 and xy = 6, find the value of 8x^3 + 27y^3​

2x+3y=12

Step-by-step explanation:

cube on both sides,

(2x+3y)^3 =12^3

by the identity (a+b)^3= a^3 +b^3 +3ab(a+b)

here, 8x^3 + 27y^3 +3(6xy)(2x+3y) =12^3

putting the values which are given ,

8x^3 +27y^3 +3*(6*6)(12) = 1728

8x^3 + 27y^3 +1296 = 1728

8x^3 +27y^3 = 1728-1296

8x^3 +27y^3 =432

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step-by-step explanation:

false

step-by-step explanation:

4y - 6 + 4y^2 - 9

before simplifying this contains 4 terms

after simplifying

4y -15 + 4y^2

it contains 3 terms