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Factor each of the following trinomials: (14 marks)

A)15s2 + 26s + 8

B) x4 – 5x2 – 36 (hint: let a = x2)

C) t2 + 4t – 2

D) 2w2 – w – 4

  • math - ,

    A) You know it will be one of
    where a*b = 8
    Looks like 15,1 won't work, so

    wolframalpha will do polynomial factorization, but the only way you'll be ready for a test is to do lots of these. It's just trial and error until you have enough practice to factor by inspection.

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