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

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asked Oct 23, 2022 96.8k views

1 vote

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

Mathematics
high-school

Aushin asked

by Aushin

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2 Answers

4 votes

Answer:

x={3,-7}

Explanation:

brackets for list

Solve with quadratic formula

separate the solutions

Square

Aysennoussi answered Oct 25, 2022

by Aysennoussi

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4 votes

Answer:

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

Explanation:

Cocoseis answered Oct 30, 2022

by Cocoseis

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