rearrange the equation to where you set it equal to 0 by moving the 25 over.
n2 - 8n -9 = 0
now factor
(n-9)(n+1)
so n1 = 9
n2 = -1
Chloe can buy 7 pencil boxes and have 1 dollar left
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The answer for ure question is x<-1/2
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