Answer:
x = ± 6
Step-by-step explanation:
Given
x² + 64 = 100 ( subtract 64 from both sides )
x² = 36 ( take the square root of both sides )
x = ± = ± 6
The cost of a video game can be modeled by the question C=5x-2. The number of games sold can be modeled by the equation N=8x+5.
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