## anonymous one year ago If a polynomial has three terms, x2 + 12x + 36, which factoring method can be considered? I WILL GIVE A MEDAL AND BE A FAN perfect-square trinomial difference of squares sum of cubes difference of cubes

1. jim_thompson5910

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2. jim_thompson5910

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3. anonymous

36 is

4. jim_thompson5910

36 is equal to _____ squared (fill in the blank)

5. anonymous

6

6. jim_thompson5910

yes

7. jim_thompson5910

x^2 is also a perfect square

8. anonymous

okay i get it

9. anonymous

it's a

10. jim_thompson5910

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11. jim_thompson5910

now determine if the middle term (12x) is equal to 2 times the square root of the outer terms

12. anonymous

perfect-square trinomial difference of squares sum of cubes difference of cubes THESE ARE THE CHOICES

13. jim_thompson5910

we're getting there

14. jim_thompson5910

is 2*x*6 equal to 12x ?

15. anonymous

yes

16. jim_thompson5910

so we definitely have something in the form a^2 + 2*ab + b^2 which is a perfect square trinomial

17. anonymous

ok thank you

18. jim_thompson5910

you're welcome

19. anonymous

can you help me with another problem