<span>3. If you don't remember the past,then you will be condemned to repeat it.
4. If two angles share a common vertex and a common side then they are Adjacent angles.</span>
S+9
More than suggests addition.
Ans: 16x² - 1
Reason:
16x² - 1
= (4x)² - (1)²
= (4x + 1)(4x - 1)