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

Question

Jenny Flowers

9 September, 05:09

+4

Answers (1)

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Isaiah Rowe · Answer 1

9x²+49x=22-5x

==>9x²+54x-22=0

==>9 (x²+2*3x+9) - 22-81=0

==>9 (x+3) ²-103=0