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Please help ASAP! Explain how you got that.

Please help ASAP! Explain how you got that.-example-1

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7 votes
for 20-22, you would multiply the denominator to the top and bottom. then multiply the top and bottom separately, factor them, and cross out the like ones. and also plug the numbers in for the variables. for 17-19, you would plug the variables in and multiply or divide them to get the answer. did that help?
User Jiulong Zhao
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