Mathematics

Parker Bridges

1 May, 18:15

Consider the steps for solving 3x2 - 42x + 9 = - 5 for x by completing the square.

Step 1: 3x² - 42x = - 14

Step 2:3 (x² - 14x) = - 14

Step 3: 3 (x^2 - 14x + 49) = - 14+__

What number should be added to the right side of the equation?

A) 96

B) 147

C) 225

D) 441

+4

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