Simplify the expression write your answers using integers or improper factions. 4(2k - 5k + 4) - 5/4K

hello from mrbilldoesmath!

answer:

a(n) - a(n-1) -3

discussion:

this ones a bit interesting. given a(n) = 5 - 3n consider this:

a(n-1) = 5 - 3(n-1)

          = (5 - 3n) + 3             => but a(n) = 5 - 3n, the first term

          = a(n)   + 3                 => subtract 3 from both sides

a(n-1) -3 = a(n)  

or

a(n) - a(n-1) -3

you,

mrb

answer: answer

step-by-step explanation:

answer: a

step-by-step explanation:

its kind of blurry. can you put a clearer pic?

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