shredzaystster
shredzaystster shredzaystster
  • 13-07-2020
  • Mathematics
contestada

Fill in the blank with a number to make the expression a perfect square.

Fill in the blank with a number to make the expression a perfect square class=

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Hrishii
Hrishii Hrishii
  • 13-07-2020

Answer:

16

Step-by-step explanation:

[tex] {w}^{2} - 8w + { {4}^{2} } \\ = {w}^{2} - 8w + \boxed{ 16} \\= (w-4)^2 [/tex]

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devishri1977
devishri1977 devishri1977
  • 13-07-2020

Answer:

Step-by-step explanation:

a² + 2ab +b² = (a+ b)²

w² - 8w + _?___

a = w

2ab = -8w

2*w*b = -8w

b = -8w/2w

b = 4

8w = 2 * 4*w

w² - 8w + 4² =w² -8w + 16

Answer Link

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