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Kruka [31]
3 years ago
13

❌ Find the volume of the box ❌

Mathematics
2 answers:
il63 [147K]3 years ago
6 0
   
V=\underbrace{(x+4)(5x-4)}(2x-1)= \\  \\
= (5x^2+20x-4x-16)(2x-1) = (5x^2+16x -16)(2x-1)= \\  \\ 
10x^3+32x^2 -32x -5x^2-16x +16 =  \\  \\ 
=10x^3 +(32x^2-5x^2) +(-32x-16x) +16 =  \\  \\ 
= \boxed{\bold{10x^3 +27x^2 -48x+16}}



andrey2020 [161]3 years ago
5 0
10x^{3}+27x^{2}-48x+16
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Answer:

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Hi Isabella,

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The first line a

2=\frac{1+x_{2} }{2}\\  4=1+x_{2}\\  4-1=-1+1+x_{2} \\ x_{2}=3\\-1=\frac{y_{2}-9}{2}\\-2=y_{2}-9\\+2-2=y_{2}-9+2\\ y_{2}=-7

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Take a look at the graph below:

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