1. determine by substitution if (-1) is the root of -2x + 1 = 0
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Answered by
0
Answer:
no
Step-by-step explanation:
-2(-1)+1=2+1=3
3≠0
Answered by
1
no,
- p(X) = -2x + 1 =0
- p(-1) = -2(-1) + 1 =0
- p(-1) = 2+1 = 0
- p(-1) = 3
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