Algebra 1

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Factor the polynomial by grouping.

1. -20 + 5y^2 + 4z - y^2z

  • Algebra 1 -

    rearrange things just a bit and you have

    5y^2-20 - y^2z + 4z
    5(y^2-4) - z(y^2-4)
    (5-z)(y^2-4)
    (5-z)(y+2)(y-2)

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