Answer:
- 15x² + 7x + 1
Step-by-step explanation:
Given
2x² - 9 - 17x² + 10 + 7x ← collect like terms
= (2x² - 17x² ) + 7x + 1
= - 15x² + 7x + 1
Answer:
=1.5
Step-by-step explanation:
A because the angles match
1. true.
2. false.
3. false.
4. true.
these should be correct.