Question

Write 9x²+100y²-60xy in the form of a square of a binomial and find it's value when x=2 and y= -1

please give answer in explanation​

Answer 1

9(2^2)+100(-1^2)-60(2)(-1)
9(4)+100(1)+120
36+100+120
256

Answer 2

Answer:

Hope it is correct

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