作业帮y=(3x^2+1)(4x^2-3)的导数是?
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y=(3x^2+1)(4x^2-3)的导数是?
y=(3x^2+1)(4x^2-3)的导数是?
y=(3x^2+1)(4x^2-3)的导数是?
f"(x)=(3x^2+1)"(4x^2-3)+(3x^2+1)(4x^2-3)"
=(6x)(4x^2-3)+(3x^2+1)(8x)
=24x^3-18x+24x^3+8x
=48x^3-10x