What is expand 1/2*0.5*x^2+0.5*30*10-400 ?

The solution to expand 1/2*0.5*x^2+0.5*30*10-400 is 0.25x^2-250

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expand 1/20.5x^2+0.53010-400

expand

\frac{1}{2} \cdot 0.5 \cdot x^{2} + 0.5 \cdot 30 \cdot 10 - 400

0.25 x^{2} - 250

Solution steps

\frac{1}{2} \cdot 0.5 x^{2} + 0.5 \cdot 30 \cdot 10 - 400

\frac{1}{2} \cdot 0.5 x^{2} = 0.5 \cdot \frac{x ^{2}}{2}

0.5 \cdot 30 \cdot 10 = 150

= 0.5 \cdot \frac{x ^{2}}{2} + 150 - 400

Add/Subtract the numbers:

150 - 400 = - 250

= 0.5 \cdot \frac{x ^{2}}{2} - 250

0.5 \cdot \frac{x ^{2}}{2} = 0.25 x^{2}

= 0.25 x^{2} - 250

x + 2^{2}

\frac{2 5}{3 - 5}

\frac{10 ( Ks + X )}{s ^{3} + 11 s ^{2} + 10 s + 10 Ks + 10 X}

(f \circ g) (3 x + 7)

\frac{x + 1}{2 x} + \frac{2 x + 3}{3 x}

What is expand 1/2*0.5*x^2+0.5*30*10-400 ?
The solution to expand 1/2*0.5*x^2+0.5*30*10-400 is 0.25x^2-250