Hmmm lemme do the first one only
Wish I didn’t have to say anything because the question is always in the picture
1 answer:
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First simplify the equation of parabola 
in the following way:
.
You can see that if x=1 or x=2, then y=0. Two points of intersection with x-axis are (1,0) and (2,0).
You can see that if x=1 or x=2, then y=0. Two points of intersection with x-axis are (1,0) and (2,0).