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