Mathematics

Robert

13 March, 21:20

The first few steps in solving the quadratic equation 9x2 + 49x = 22 - 5x by completing the square are shown. 9x2 + 49x = 22 - 5x 9x2 + 54x = 22 9 (x2 + 6x) = 22 Which is the best step to do next to solve the equation by completing the square? 9 (x2 + 6x + 3) = 25 9 (x2 + 6x + 3) = 49 9 (x2 + 6x + 9) = 31 9 (x2 + 6x + 9) = 103

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