WEBVTT
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Using the diagram, factor four π₯ plus 12.
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This diagram has images that reflect four π₯ and 12.
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The diagram on the right-hand side has combined the two images.
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And itβs taken the bar of size 12 and divided it into four evenly sized pieces.
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We know that 12 divided by four equals three.
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This diagram has removed a factor of four from the 12 and from the four π₯.
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12 divided by four equals three.
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And four π₯ divided by four equals π₯.
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We see that four times π₯ plus four times three equals four π₯ plus 12.
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These are equivalent expressions.
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And so, we can say that four π₯ plus 12 is equal to four times π₯ plus three.
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We can also say that the highest common factor of four π₯ and 12 is four.
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We have undistributed the highest common factor from these two terms to give us four times π₯ plus three.