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anonymous

  • one year ago

How would the expression (x^2+1)(y^2+4) be rewritten using Two Squares? A. (xy-2)^2+(x+2y)^2 B. (xy-2)^2+(2x+y)^2 C. (xy-2)^2-(4x+y)^2 D.(xy+2)^2+(x+2y)^2

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  1. TrojanPoem
    • one year ago
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    y^2 x^2 + 4x^2 + y^2 + 4 (yx +2)^2 + (2x+y)^2

  2. anonymous
    • one year ago
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    what

  3. Loser66
    • one year ago
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    It doesn't make sense to you, right? and "How can I know that way", right? Suggestion: just open parentheses the options (ONE BY ONE), and simplify them to see which one gives you the given expression. That way doesn't ask you the experience or guessing.

  4. Loser66
    • one year ago
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    I do A for you as example A) \((xy-2)^2 +(x+2y)^2\\=(x^2y^2-4xy+4)+(x^2+4xy+4y^2)\\=x^2+4y^2+x^2y^2+4\) while your give expression is \((x^2+1)(y^2+4)=x^2y^2+4x^2+y^2+4\) They are different, right? hence A is NOT the right answer.

  5. anonymous
    • one year ago
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    ok thank you

  6. anonymous
    • one year ago
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    its B

  7. Loser66
    • one year ago
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    I gave you the way to do. You do it carefully and take responsibility for your work. I don't check.

  8. anonymous
    • one year ago
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    I didn't say you did?

  9. Loser66
    • one year ago
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    No, you didn't. Just gave the reason why I didn't say Yes or No for your answer.

  10. anonymous
    • one year ago
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    ok

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