Question

plz help me to solve this it's urgent

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Answer 1

Step-by-step explanation:

(3/2x+2/3y)cube

(9+4/6)cube

(13xy/6)cube

10.1712963xycube

Answer 2

Hey ! Here it is ;

We know that,

(x+y)³=x³+y³+3xy(x+y).

Therefore,

(3/2x+2/3y)³=(3/2x)³+(2/3y)³+3 {(3/2x)(2/3y)}{(3/2x+2/3y)}

=9/4x²+4/9y²+3{6/6xy}(3/2x+2/3y)

=9/4x²+4/9y²+3/xy(3/2x)+3/xy(2/3y)

=9/4x²+4/9y²+9x/2xy+6y/2xy

=9/4x²+4/9y²+9/2y+3x.