(3x+4) (2x-6)
6x-18x+4x-24
6x^{2} -14-24
Find out what number goes into 8 and 10 then figure out how many times that number goes into 100
X= 5 or -8
Add all the like terms and set it equal to 49, use quadratic formula or factoring.
X = 61 degrees.
Find the number of degrees in a pentagon by using the following formula:
(number of sides - 2)180 = 540.
There are 540 degrees in a pentagon.
Since we know four of the angles, we can subtract them from 540 to get the fifth angle.
540-138-144-107-90 = 61
Hope this helped =)