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elixir [45]
3 years ago
13

3. If x2 + 4 = 29, then x2 - 4 = ? A. 5 B. 121 C. 21 D. 25 E. 33

Mathematics
2 answers:
EastWind [94]3 years ago
7 0
Answer is c as x is 25/2
zvonat [6]3 years ago
6 0

Answer:

c

Step-by-step explanation:

<h3>because x²+4=29 you can solve the equation for x²</h3><h3>x²+4=29</h3><h3>x²=25</h3><h3>substitute the value of x² into the expression x²-4 to calculate the value the expression is equal to </h3><h3>x²-4=25-4=21</h3><h3>c.21 is your answer </h3><h3>hope this works</h3>
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