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Mathematics

Answered

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

Answer :

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Answer:

x={3,-7}

Step-by-step explanation:

brackets for list

Solve with quadratic formula

separate the solutions

Square

Answer Link

Jiaojason2020go Jiaojason2020go

Answer:

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

Step-by-step explanation:

Answer Link

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