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13. If ax + bx - 9 =(x - k)(2x+k) and b>0 then k is equal to... please please help! :))
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13. If ax + bx - 9 =(x - k)(2x+k) and b>0

then k is equal to...
please please help! :))

13. If ax + bx - 9 =(x - k)(2x+k) and b>0 then k is equal to... please please help-example-1
User Dale Dietrich
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Answer:

D or E ...................

User David Read
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