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earnstyle [38]
3 years ago
11

When 9x^2-100 is factored,it is equivalent to (3x-b)(3x+b). what is a value for b?

Mathematics
1 answer:
Hunter-Best [27]3 years ago
7 0
9x^2-100 is a perfect square

if we factor 9x^2-100= (3x-10)(3x+10)
therefore b=10
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Explanation:

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As a way to check, we can plug x = 3 into each equation. We should get y = -2 as a result for each equation

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