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Rewrite the equation by completing the square. x^{2}+4x-21 = 0

Rewrite the equation by completing the square. x^{2}+4x-21 = 0
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1 vote
Rewrite the equation by completing the square. x^{2}+4x-21 = 0

User Aushin
by
7.7k points

2 Answers

4 votes

Answer:

x={3,-7}

Explanation:

brackets for list

Solve with quadratic formula

separate the solutions

Square

User Aysennoussi
by
8.5k points
4 votes

Answer:

2 for the first box and 25 for the second one.

Explanation:

User Cocoseis
by
8.3k points
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