Math

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What times something equals to 84? Like this: ___×__= 84.

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Im having problem with this. It's for the factoring trees. I know it's 4×21=84, i tried that, but it doesn't fit in the factoring trees.

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4 * 21 = 2 * 2 * 3 * 7

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Thanks Ms.Sue! :)

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You're welcome, Losa.

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Simplify: 6a(4a - 2) + 3a(a + 7)

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