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Which of these is the result of completing the square for the expression x2 + 8x - 30 A. (x + 4)2 – 30 B. (x + 4)2 - 46 C. (x + 8)2 – 30 D. (x + 8)2 – 94

Answer :

[tex]x^2+8x-30=x^2+8x+16-30-16=(x+4)^2-46[/tex]

so the answer is B

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