@hemant_malhotra
a^2b^2 + a^2c^2 + b^2c^2 = (ab + bc + ac)^2 - 2abc (a + b + c) = (1/3)^2 - 2(-1)(-2/3)
= 1/9 - 4/3 = -11/9
= -11/9 / (-1)^2 = -11/9
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RE: Question Bank - Algebra - Hemant Malhotra
@hemant_malhotra
a^2b^2 + a^2c^2 + b^2c^2 = (ab + bc + ac)^2 - 2abc (a + b + c) = (1/3)^2 - 2(-1)(-2/3)
= 1/9 - 4/3 = -11/9
= -11/9 / (-1)^2 = -11/9