(a + 1)(a² + 2a + 1)
= a(a² + 2a + 1) + 1(a² + 2a + 1)
= a³ + 2a² + a + a² + 2a + 1
= a³ + 3a² + 3a + 1
Answer: b
<h3>
Answer:</h3><h3> C</h3><h3 /><h3>
Step-by-step explanation:</h3><h3>It is C.</h3>
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Hope i helped
All the points if they lay on top of eachother
if they arent on top of eachother, they can intersect at 2 points