w3−ww^3-ww3−w
(3a2b)⋅(49ab2)\left(3a^{2}b\right)\cdot\left(\frac{4}{9}ab^{2}\right)(3a2b)⋅(94ab2)
x2−30x+99x^2-30x+99x2−30x+99
3sinxcosx=3\frac{3\sin x}{\cos x}=\sqrt{3}cosx3sinx=3
[−14(−20+12)(7−14)][−11+2(12−19)]−14\left[-14\left(-20+12\right)\left(7-14\right)\right]\left[-11+2\left(12-19\right)\right]-14[−14(−20+12)(7−14)][−11+2(12−19)]−14
(45x+23y)2\left(\frac{4}{5}x+\frac{2}{3}y\right)^2(54x+32y)2
−4x3(2x2−9x)- 4 x ^ { 3 } ( 2 x ^ { 2 } - 9 x )−4x3(2x2−9x)
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