2 years ago

Pls help I really need help Show workings pls

1 answer:

4 0

Answer:

B.) Perpendicular

Step-by-step explanation:

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Step-by-step explanation:

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3 years ago

Zepler [3.9K]

For this case we must simplify the following expression:

$x ^ 2-3xy-5xy-7y ^ 2 + 4x ^ 2 + 8y ^ 2$

We must add similar terms taking into account that:

$(x ^ 2 + 4x ^ 2) + (- 3xy-5xy) + (- 7y ^ 2 + 8y ^ 2) =\\5x ^ 2-8xy + y ^ 2$

Thus, the simplified expression is:

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$5x ^ 2-8xy + y ^ 2$

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3 years ago

levacccp [35]

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Step-by-step explanation:

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