i have two algebra questions that my daughter needs to answer
factorise 5x - 15
could some one please explain to me how to do this .. so i can help her with her homework
here we want to do the opposite. we want to look for what is common among the terms and pull it out. here we see that 5 is common. since we can get 5 out of 5x to leave x, since 5x = 5*x and 5 out of 15 to leave 3, since 15 = 3*5factorise 5x - 15
do you get it?