2a + b = - 2
4a² - 8a + b² + 4ab - 4b = (4a² + 4ab + b²) - (8a + 4b) = (2a + b)² - 4(2a + b) = (-2)² - 4 * (- 2) = 4 + 8 = 12
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Verified answer
2a + b = - 2
4a² - 8a + b² + 4ab - 4b = (4a² + 4ab + b²) - (8a + 4b) = (2a + b)² - 4(2a + b) = (-2)² - 4 * (- 2) = 4 + 8 = 12