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Travka [436]
3 years ago
5

Solve by factoring 4x^2-25=0

Mathematics
1 answer:
Ira Lisetskai [31]3 years ago
3 0
                               4x² - 25 = 0
            4x² - 10x + 10x - 25 = 0
2x(2x) - 2x(5) + 5(2x) - 5(5) = 0
          2x(2x - 5) + 5(2x - 5) = 0
                   (2x + 5)(2x - 5) = 0
       2x + 5 = 0    U    2x - 5 = 0
             - 5  - 5              + 5 + 5
             2x = -5               2x = 5
              2      2                2     2
               x = -2¹/₂             x = 2¹/₂

Solution Set: {-2¹/₂, 2¹/₂}
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A clothing store offers customers a holiday sale of 20% off the price of x items. A customer then has an additional 15% off coup
aleksandr82 [10.1K]

Finding the equivalent multiplier, it is found that the function for the final price is:

P(x) = 0.68x.

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  • There is a holiday sale of 20% off the price of x, thus 0.8x is paid, as 1 - 0.2 = 0.8.
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A similar problem is given at brainly.com/question/16999193

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Directions:Use the product rule to simplify the following monomials.
nadezda [96]

Answer: -12m^3n^3

Step-by-step explanation:

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