Question

Which of the following tables shows the correct steps to transform x2 + 8x + 15 = 0 into the form (x - p)2 = q?
[p and q are integers]

Answer 1

Step 1 x2 + 8x + 15 - 1 = 0 - 1
Step 2 x2 + 8x + 14 = -1
Step 3 (x + 4)2 = -1


Step 1 x2 + 8x + 15 - 2 = 0 - 2
Step 2 x2 + 8x + 13 = -2
Step 3 (x + 4)2 = -2


Step 1 x2 + 8x + 15 + 1 = 0 + 1
Step 2 x2 + 8x + 16 = 1
Step 3 (x + 4)2 = 1


Step 1 x2 + 8x + 15 + 2 = 0 + 2
Step 2 x2 + 8x + 17 = 2
Step 3 (x + 4)2 = 2

Answer 2

ah ok

Answer 3

do you know how to complete the square?

Answer 4

kind of, i just learned today