(x 4 - 81) (x - 3) . write answers in descending power of x. (division)

  x^3+3x^2+9x+27

Step-by-step explanation:

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The factoring of the difference of squares is used (twice):

  a² -b² = (a -b)(a +b)

y do u put "subscirbe to ence" on a app for ppl who need with their work?

circle area = pi * radius^2

if diameter = 10 then radius = 5

circle area = pi * 5^2

circle area = pi * 25

circle area = 78.5398163397 square units

step-by-step explanation: