(2a−3b)2+(4b+5a)(4b−5a)−(a−3b)2\left(2a-3b\right)^2+\left(4b+5a\right)\left(4b-5a\right)-\left(a-3b\right)^2(2a−3b)2+(4b+5a)(4b−5a)−(a−3b)2
0.44444444444444444444444444444444\sqrt{0.44444444444444444444444444444444}0.44444444444444444444444444444444
secx+tanx+1secx+tanx=2secx\sec x+\tan x+\frac{1}{\sec x+\tan x}=2\sec xsecx+tanx+secx+tanx1=2secx
5+3{4−2(32+2)3+2}+35+3\left\{4-2\left(3^2+2\right)^3+2\right\}+35+3{4−2(32+2)3+2}+3
x4+3x2+256x^4+3x^2+256x4+3x2+256
1500(1.11)51500\left(1.11\right)^51500(1.11)5
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