x(4x+3)≤(2x+1)2x\left(4x+3\right)\le\left(2x+1\right)^2x(4x+3)≤(2x+1)2
0.6+5+3.078+6.8320.6+5+3.078+6.8320.6+5+3.078+6.832
3 13 x 2 7103\:\frac{1}{3}\:x\:2\:\frac{7}{10}331x2107
144×44−8194b2144 \times 4 ^ { 4 } - 819 ^ { 4 } b ^ { 2 }144×44−8194b2
x2−2x2+1\frac{x^2-2}{x^2+1}x2+1x2−2
m2+8m+15m2−5m−24\frac{m^2+8m+15}{m^2-5m-24}m2−5m−24m2+8m+15
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