√(5-b)^8 simplifying radicals

please explain your answer too so i can understand how you did it

  (5 -b)^4 = b^4 -20b^3 +150b^2 -500b +625

Step-by-step explanation:

The applicable rules of exponents are ...

  √a = a^(1/2)

  (a^b)^c = a^(bc)

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You have √((5-b)^8) = ((5 -b)^8)^(1/2)

  = (5 -b)^(8/2) = (5 -b)^4

Sometimes, "simplify" means "remove parentheses".

  (5 -b)^4 = b^4 -20b^3 +150b^2 -500b +625

answer: the answer is 30 miles per hour.

ft/s -> mphmph = ft/s 1.466667mph = 44 divided by 1.466667mph = 30.00000

- r3ktforgood ☕

answer: check all that apply, where the options?

step-by-step explanation: