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3 votes
Factor 6p^2 +15p+9????

User AndyMM
by
8.3k points

2 Answers

4 votes
actor using the ac method

for
ax²+bx+c when a≠1

multiply a and c and remember their product
find what 2 numbers multiply to get that product and add to be
split b into those 2 numbers
factor

so

first factor the 3
3(2p²+5p+3)
multiply a and c
2*3=6
wat 2 numbers multiply to get 6 and add to 5
oh ya, 2 and 3

3(2p²+2p+3p+3)
gropu and factor
3((2p²+2p)+(3p+3))
3(2p(p+1)+3(p+1))
3(2p+3)(p+1) is factored

User Wryan
by
7.9k points
4 votes
To factor the trinomial, you can use the ac method where you multiply the first and last terms together (6 and 9) and add up to 15.
In this case ac= 54
2 numbers that multiply to 54 and add up to 15 would be 6 and 9 so place these numbers where the 15 would be:

6p^(2) +9p + 6p+9
Then group terms to simplify:

(6p^(2) +9p)(6p+9)
Simplify any like terms:

3p(2p+3) 3(2p+3)
And group together again:

(3p+3)(2p+3)
You can simplify a 3 out of the first expression one more time to get:

3(p+1)(2p+3)
Which would be the factored form. I hope this helps :)
User Thrau
by
8.6k points

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