Abag contains 8 balls. 5 are black 3 are white. a ball is taken out of the bag at random and not replaced. another ball is taken out of the bag at random. what is the probability that both of the balls are the same colour?

Talia grouped the terms and factored out the gcf of the groups of the polynomial 15x2 – 3x – 20x + 4. her work is shown below. (15x2 – 3x) + (–20x + 4) 3x(5x – 1) + 4(–5x + 1) talia noticed that she does not have a common factor. what should she do?