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

image result for what is another name for consecutive interior angles? ​

when two lines are crossed by another line (called the transversal): the pairs of angles on one side of the transversal but inside the two lines are called consecutive interior angles. in this example, these are consecutive interior angles: d and f.

step-by-step explanation: