-4/5+(-3/4)(-3/4)(4)
\(-\frac{4}{5}+\frac{-3}{4}\times\frac{-3}{4}\times 4=-\frac{4}{5}+\frac{9}{4}=\frac{-16+45}{20}=\frac{29}{20}=1\frac{9}{20}\)
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