If using the method of completing the square to solve the quadratic equation x2 - 6x – 7 = 0, which number would have to be adde d to "complete the square"?
1 answer:
Answer:
(-3)^2
Step-by-step explanation:
You add 7 on both sides, giving you x^2 - 6x = 7
Then, take half of b, and square it. Giving you x^2 - 6x +(-3)^2 = 7
The answer will be (-3)^2 for this question, but this is not the full solution.
Hope this helped. Good luck on the rest!
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Step-by-step explanation:
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Answer:
Step-by-step explanation:
angle A = 40
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