Activity 3: What's My Value? Directions: Evaluate the expression b2 - 4ac given the following values of a, b and e and wr your solution on the space provided for. c=1 b = 4 a = 3 Illustrative Example: b2 - 4ac (4)2 - 4(3)(1) 16 - 12 4 b= 5, c=4 1. a = 1, b= 1. c=-21 2. a = 2, c=1 3. a = 4, b=4,
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Answer:
1. 5²-3(1)(4)
25-16
9
2. 1²-4(2)(-21)
1-(-168)
1+168
169
3. 4²-4(4)(1)
16-16
0