Math222

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What is the domain of
y2 – 4 /
2y2 + y – 1

  • Math222 -

    2y²+y-1=(2y-1)(y+1)
    So:
    (y+2)(y-2)/(2y-1)(y+1)
    y cannot be 1/2 or -1
    ☺☺☺☺

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