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Mathematics, 07.11.2019 04:31 lizzy2951

How is a²-4a-21 expressed in factored form?

(x-1)(x+21)
(x-21)(x+1)
(a-7)(a+3)
(a-3)(a+7)

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How is a²-4a-21 expressed in factored form?

(x-1)(x+21)
(x-21)(x+1)
(a-7)(a...

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