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loris [4]
3 years ago
10

PLEASE ANSWER!!

Mathematics
1 answer:
s344n2d4d5 [400]3 years ago
7 0
D
{x}^{2}  + 2xy \\  { ( - 3)}^{2}  + 2( - 3)(5) \\ 9 + 2( - 15) \\ 9 + ( - 30) \\  - 21
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