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a) 210:[16+3.(6+3.2^2)]-3
=210:[16+3.(6+3.4)]-3
=210:[16+3.(6+12)]-3
=210:[16+3.18]-3
=210:[16+54]-3
=210:70-3
=3-3
=0
\(500-\left\{5.\left[409.\left(2^3.3-21\right)^2\right]\right\}-3\)
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Ta có:
\(80-\left(4.5^2-3.2^3\right)=2^{10}-\left(x-4\right)\)
\(\Rightarrow80-\left(100-24\right)=1024-\left(x-4\right)\)
\(\Rightarrow80-76=\left(1024-4\right)-x\)
\(\Rightarrow4=1020-x\)
\(\Rightarrow x=1020-4\)
\(\Rightarrow x=1016\)
Vậy x = 1016
\(80-\left(4.5^2-3.2\right)=2^{10}-\left(x-4\right)\)
\(=>80-\left(100-24\right)=1024-x+4\)
\(80-76=\left(1024-4\right)-x\)
\(=>4=1020-x\)
\(=>x=1016\)
Vậy nghiệm của PT trên là : \(x=1016\)
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{210:[16+3.(6+3.2^2)]}-3
={210:[16+3.(6+3.4)]}-3
={210:[16+3.(6+12)]}-3
={210:[16+3.18)]}-3
={210:[16+54)]}-3
={210:70)]}-3
=30-3
=27
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\(\left\{210:\left[16+3.\left(6+3.2^2\right)\right]\right\}-3\)
\(=\left\{210:\left[16+3.\left(6+12\right)\right]\right\}-3\)
\(=\left\{210:\left[16+3.18\right]\right\}-3\)
\(=\left\{210:\left[16+54\right]\right\}-3\)
\(=\left\{210:70\right\}-3=3-3=0\)