algebra

^440 squareroot (a+b)^440
my answer: |a+b|

add. squareroot 7a + 4 squareroot 28a^3
?

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  1. sqrt(7a) + 4 sqrt(28a^3)
    =sqrt (7a) + 4 sqrt(4a^2*7a)
    =sqrt(7a) + (4*2a)sqrt*7a)
    = (1 + 8a) * sqrt(7a)

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  2. The meaning of what you wrote is unclear. If you meant the 440th root of (a+b)^440, then the answer is a + b. Since this is an even-numbered power,
    -a-b is also an answer.

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