I need an equation for this.

What signals you that factoring by grouping is the best method to use when factoring a problem?

Suppose you want just guess at the answers in a 5 question multiple-choice test. each question has 3 responses and only one is correct. what is the probability of getting two questions right just guessing? 20 points 0.3275 0.2753 0.7532 none of the above

Measure of angles 31 (x+4) (3x+9) me