Question

How do I solve this by completing the square: (x^2) - 7x - 3 = 0

Answer 1

cube = 61

Answer 2

I don't get it.

Answer 3

is it an A B C D question

Answer 4

No.

Answer 5

OK. So to complete the square, you're going to try to make something of the form (x-a)^2, and then add a little to fix it.

Answer 6

Yes, I did that with previous questions but when I tried it for this one, I got stuck.

Answer 7

x^2-7x-3=0
x^2-3x-4x-3=0
x(x-3)-4(x-3)=0
(x-3) (x-4)
x=3,4 answer

Answer 8

The final answer is supposed to be in surd form though