What is expand derivative of (0.8x-8(0.5x+6))+85 ?

The solution to expand derivative of (0.8x-8(0.5x+6))+85 is derivative of 0.4x^2+0.8x-48+85

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expand derivative of (0.8x-8(0.5x+6))+85

expand

\frac{d}{d x} ((0.8 x - 8) (0.5 x + 6)) + 85

\frac{d}{d x} (0.4 x^{2} + 0.8 x - 48) + 85

Solution steps

\frac{d}{d x} ((0.8 x - 8) (0.5 x + 6)) + 85

Expand

(0.8 x - 8) (0.5 x + 6) : 0.4 x^{2} + 0.8 x - 48

= \frac{d}{d x} (0.4 x^{2} + 0.8 x - 48) + 85

\frac{10}{( 2 - x ) ^{2}}

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x^{2} e^{4 x} + (x e^{x} - 1)^{2}

\frac{( ( 10 + j ( w ) ) ( 1000 + j ( w ) ) )}{( 200 + j ( w ) )}

What is expand derivative of (0.8x-8(0.5x+6))+85 ?
The solution to expand derivative of (0.8x-8(0.5x+6))+85 is derivative of 0.4x^2+0.8x-48+85