What number must you add to complete the sqaure? x^2+2x=-1

1

Step-by-step explanation:

By adding 1 on both sides we get:

By adding such we get on the left a perfect square trinomial (a trinomial that is the result of squaring a binomial):

To decide what to add, understand what is the result of squaring a binomial of the form:

In your case, 2*c*x is "2x" therefore the value of c must be 1.

so to complete the square you need to add which will result in

33

step-by-step explanation: g=6

i believe the answer is 68cm

step-by-step explanation:

i just took 34 x 2 because the space between v and y is the same as y to k.