How do you factor # a(a+6)+7(a+6)#?
1 Answer
Explanation:
First you need to expand out the brackets by multiplying the outer number with the inner two numbers separately. Now we'll do
#a xx a = a^2#
#a xx 6 = 6a#
That's the first set of brackets expanded. Now for the second pair of brackets, where we do the same thing.
#7 xx a = 7a#
#7 xx 6 = 42#
Collect the like terms.
#7a + 6a = 13a#
Add the others.
#a^2 + 13a + 42#
You cannot solve this equation because the value of