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Xelga [282]
3 years ago
10

=" {x}^{2} - 18 < 0" align="absmiddle" class="latex-formula">
​
Mathematics
1 answer:
NARA [144]3 years ago
8 0

Answer

-sqrt(18)<x<sqrt(18)

Step-by-step explanation:

  1. Factorise:(x-sqrt(18))(x+sqrt(18))<0
  2. Critical values:-sqrt18 and sqrt18
  3. Use number line or graphical method
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If EF = 5w + 20, FG = 7w + 28, and EG = 72, find the value of w. Find EF and FG
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We have EF = 5w + 20  and FG = 7w + 28

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