3 years ago

2+5.67890654321678-5432

Mathematics

1 answer:

8_murik_8 [283]3 years ago

7 0

-5,424.3 ...............

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Evaluate 3x² - 4xy + 2y² - 1 for x = - 3 and y = 5

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Answer:

$3x^{2} - 4xy + 2y { }^{2} - 1 \\ 3 \times ( - 3) { }^{2} - 4 \times ( - 3) \times 5 + 2 \times 5 {}^{2} - 1 \\ (3 \times 9) - ( - 60) + 50 - 1 \\ 27 + 60 + 50 - 1 \\ 165$

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Maurinko [17]

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Step-by-step explanation:

Given :The chance of winning a car is 1 in 1,000.

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Step-by-step explanation:

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