Math 222

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Please help me factor this with steps on how you got the answer. Sorry my addition and equal button is not working

a^2-6a plus 9 equal 0

  • Math 222 -

    a^2 - 6 a + 9 = 0

    (a-3)(a-3) = 0

    a = 3 or a = 3, in other words the vertex is on the x axis.

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