(y−15)(y+19)\left(y-15\right)\left(y+19\right)(y−15)(y+19)
16x4 − 25616x^4\:-\:25616x4−256
176\sqrt{176}176
24⋅(−36)⋅4824\cdot\left(-36\right)\cdot4824⋅(−36)⋅48
cosx−cos2x cscx=sinxcosx-cos^2x\:cscx=sinxcosx−cos2xcscx=sinx
x=2425xx=\frac{24}{25}xx=2524x
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