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Complete the following so that it forms a perfect square x^2 - (EMPTY SPACE)x + 4
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5 votes
Complete the following so that it forms a perfect square


x^2 - (EMPTY SPACE)x + 4

User Diego Sanches
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1 Answer

5 votes
The answer is 4 because the square root of 4 is -2, and that multiplied by 2 is -4
User Pldimitrov
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