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a.(t-2)(t+2)(t-2)/3
b.3(t+2)
c.3(t-2)
d.(t-2)(t+2)(t-2)/12

2007-11-15 06:15:09 · 2 answers · asked by BabyGirl82985 1 in Education & Reference Homework Help

2 answers

None of the answers listed. The answer is [4(t+2)]/3...so unless one of those statements is equivalent....I'll work it out:
[(4t^2-16)/18]/[(t-2)/6]

[(4t^2-16)/18] * [6/(t-2)]
the 18 and 6 cancel leaving a 1 in place of the 6 and a 3 in place of 18:
[(4t^2-16)/3] * [1/(t-2)]
4t^2-16=4(t+2)(t-2)
So you have:
{[4(t-2)(t+2)]/3} * [1/(t-2)]
the (t-2) factors cancel out:
[4(t+2)]/3

2007-11-15 06:41:27 · answer #1 · answered by mark h 3 · 0 0

4(t^2-4) / 18 / (t-2) / 6

4(t-2)(t+2) / 18 / (t-2) / 6

4(t-2)(t+2) /18 * 6 / (t-2)

3(t+2)

2007-11-15 06:31:59 · answer #2 · answered by Dave aka Spider Monkey 7 · 0 0

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