tommybcc tommybcc

02-06-2019
Mathematics

contestada

Help!!
Solve this 6x^3 - 8y^3 - 12x^2y^2 + 4xy
x=2/3 and y=1/2

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Аноним Аноним

02-06-2019

Answer:

7/9

Step-by-step explanation:

6x^3-8y^3-12x^2y^2+4xy x=2/3 y=1/2

=6(2/3)^3-8(1/2)^3-12(2/3)^2(1/2)^2+4(2/3)(1/2)

=6(8/27)-8(1/8)-12(4/9)(1/4)+4(1/3)

=(16/9)-1-(4/3)+(4/3)

=(1 7/9)-1

=7/9

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