A. Find the solutions of each of the following quadratic equations by completing the square.
1. 2 + 4 − 21 = 0
2. 2 − 10 = −17
3. 2 + 7 − 51 4 = 0
4. 2 + 10 + 9 = 0
5. 2 − 5 − 6 = 0
6. 4 2 − 32 = −28
B. Find the solutions of each of the following quadratic equation using the quadratic formula.
1. 2 + 5 − 14 = 0
2. 3 2 − 4 = 0
3. 2 2 + 7 + 9 = 0
4. 2 + 7 = 4
5. 2 2 + 4 = 3
6. 2 − 12 + 35 = 0
1. 2 + 4 − 21 = 0
2. 2 − 10 = −17
3. 2 + 7 − 51 4 = 0
4. 2 + 10 + 9 = 0
5. 2 − 5 − 6 = 0
6. 4 2 − 32 = −28
B. Find the solutions of each of the following quadratic equation using the quadratic formula.
1. 2 + 5 − 14 = 0
2. 3 2 − 4 = 0
3. 2 2 + 7 + 9 = 0
4. 2 + 7 = 4
5. 2 2 + 4 = 3
6. 2 − 12 + 35 = 0
Add an Answer
More Questions From This User See All
Answers & Comments
Answer:
1.First rearrange the equation into standard form, x2−4x−21=0 . The discriminant is then (−4)2−4⋅1⋅(−21)=16+84=100 .
Step-by-step explanation:
make me brainlist