Consider the steps for solving 3x^2 - 42x + 9 = -5 for x by completing the square.

step 1) 3x^2 - 42x = -14
step 2) 3(x^2 - 14x) = -14
step 3) 3(x^2 - 14x + 49) = -14 +

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

me !

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.

(53.5 - 18.4) m.

step-by-step explanation:

after undergoing a displacement of 18.4m, the initial position was (53.5 - 18.4) m if an object has a final position of 53.5.