anonymous
  • anonymous
The length of a rectangle is represented by the function L(x) = 4x. The width of that same rectangle is represented by the function W(x) = 7x2 − 4x + 2. Which of the following shows the area of the rectangle in terms of x? (L + W)(x) = 7x2 + 2 (L + W)(x) = 7x2 − 8x + 2 (L ⋅ W)(x) = 28x3 − 16x2 + 8x (L ⋅ W)(x) = 28x3 − 4x + 2
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
@DanJS
anonymous
  • anonymous
Hi can you help?
Vocaloid
  • Vocaloid
area = length*width = L(x)*W(x) so just multiply the two functions together

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anonymous
  • anonymous
So (4x)7x2 − 4x + 2 ?
Vocaloid
  • Vocaloid
be careful with parentheses (4x)(7x^2-4x+2)
Vocaloid
  • Vocaloid
now distribute the 4x
anonymous
  • anonymous
okay one second
anonymous
  • anonymous
28x3−16x2+8x
anonymous
  • anonymous
is that right?
Vocaloid
  • Vocaloid
yes! great work
anonymous
  • anonymous
yay thankyou

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