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
It’s cheaper to take this bus. Compare 166 to 190
Answer:
Hello! answer: 20
Step-by-step explanation:
1/8 × 20 = 2 1/2 So the answer is 20 HOPE THAT HELPS!
