(9a2b2c2)\sqrt{\left(9a^2b^2c^2\right)}(9a2b2c2)
3sin2x−sinx−43\sin^2x-\sin x-43sin2x−sinx−4
y′′−10y′+21y=0y''-10y'+21y=0y′′−10y′+21y=0
m4+6m3+140+3mm^4+6m^3+140+3mm4+6m3+140+3m
(3x2)(4x4)\left(3x^2\right)\left(4x^4\right)(3x2)(4x4)
−3+2a3−3a2+4a-3+2a^3-3a^2+4a−3+2a3−3a2+4a
2x2+8x−12x^2+8x-12x2+8x−1
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