Multiply 2/3 x³y³ by (3x - 15y) and verify the result for x=2 and y=(-1)
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2/3x^3y^3(3x-15y) _____ RHS
2/3x^3y^3*3x - 2/3x^3y^3*15y
2x^4y^3 - 10x^3y^4 ______ LHS
Verification:-
RHS = 2/3(2)^3(-1)^3[6-(-15)]
= 2/3*8*(-1)*21
= -112
LHS = 2*(2)^4(-1)^3 - 10*(2)^3(-1)^4
= 2*16*(-1) - 10*8*1
= -32 - 80
= -112
Hence, verified.
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