How do you factor the trinomial # d^2 + 15d + 44#?

2 Answers
Dec 2, 2015

#d^2+15d+44=(x+4)(x+11)#.

Explanation:

#d^2+15d+44#

Find two numbers that when added equal 15 and when multiplied equal 44. The numbers 4 and 11 meet the criteria.

Rewrite the trinomial as #(x+4)(x+11)#.

Dec 2, 2015

#(d+11)(d+4)#,
#d=-11#,
#d=-4#.

Explanation:

You multiply the constant multiplying #d#, which is #1#, times the last number, #44#. This gives us the value #44#. Now you look for factors of #44# that add up to #15#. These are #11# and #4#. So, we write them in the form #(d+a)(d+b)#, where #d# is #d#, #a# is the first factor, #11#, and #b# is the second factor, #4#. So,
#(d+11)(d+4) = 0#
#d=-11#,
#d=-4#.

Hope it Helps! :D .