find the value of a2+b2 and a4+b4 when a+b=5 and ab =4 ​

Question

find the value of a2+b2 and a4+b4 when a+b=5 and ab =4

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Phúc Điền 2 months 2021-07-22T13:41:25+00:00 1 Answers 7 views 0

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    2021-07-22T13:42:30+00:00

    Answer:

    a² + b² = 17

    a^4 + b^4 = 257

    Step-by-step explanation:

    The only solutions for a+b=5 and ab =4 is:

    4 and 1 but we don’t know which is which. In this case it doesn’t matter though.

    a² + b² = 16 + 1 = 17

    a^4 + b^4 = 256 + 1 = 257

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