Analyze the expression 7x2+35x+42 .
Factor the expression completely.
You can go further:
7(x2 + 5x + 6) = 7(x + 2)(x + 3)
.
It may help you to notice that you can take 7 out as a factor. You may be able to factorise the smaller version! So look at this version below:
$$7(x^2 + 5x + 6)$$
+961 
+29 
