193k views
2 votes
Can you please factorise these equations 3a^2+7a and x^2+7x+12 and can u explain how to do it

1 Answer

6 votes
3a^2+7a
factor each and find common fctor
3a^2=3*a*a
7a=7*a
common factor is a

a(3a+7)

x^2+7x+12
hmm what multiplies to 12 and adds to 7
3 and 4
(x+3)(x+4)
User Lorenzo
by
8.9k points

Related questions

asked Mar 12, 2017 2.7k views
Kross asked Mar 12, 2017
by Kross
7.6k points
2 answers
4 votes
2.7k views
asked Jan 23, 2017 14.5k views
Shuman asked Jan 23, 2017
by Shuman
8.5k points
1 answer
2 votes
14.5k views