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densk [106]
4 years ago
11

Find the * please. (2a + ∗)(2a - ∗) = 4a2–b2

Mathematics
1 answer:
mr Goodwill [35]4 years ago
8 0

Answer:

b

Step-by-step explanation:

(2a + ★)(2a - ★) =4a²-b²

If you substitute b for ★ in the equation. We have;

(2a + b)(2a - b) = 4a² - b²

4a² - 2ab + 2ab -b² = 4a²-b²

4a²-b²= 4a² - b².

So 'b' is correct

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