m2−25m−5\frac{m^2-25}{m-5}m−5m2−25
24+62^4+624+6
∫−8x2⋅e−2xdx\int-8x^2\cdot e^{-2x}dx∫−8x2⋅e−2xdx
19sinx=6cos2x−1419\sin x=6\cos^2x-1419sinx=6cos2x−14
x2−4x2x^2-4x^2x2−4x2
(−3ab)(2a2−7ab+8b2)\left(-3ab\right)\left(2a^{2}-7ab+8b^{2}\right)(−3ab)(2a2−7ab+8b2)
14n2+4n−3\frac{1}{4n^2+4n-3}4n2+4n−31
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