Answer:
- 2a² - 5a + 4ab - 2b + b²
Step-by-step explanation:
Distributing the parenthesis gives
= - 2a² - 2ab + 10a - 15a + 6b + 6ab + b² - 8b ( collect like terms )
= - 2a² + (10a - 15a) + (- 2ab + 6ab) + (6b - 8b) + b²
= - 2a² - 5a + 4ab - 2b + b²
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coefficient of the a² term is - 2
coefficient of the ab term is + 4
coefficient of the b term is - 2
