Answer:
(x-a-5)(x+a+5)
Step-by-step explanation:
x^2-(a^2+10a+25)
x^2-(a+5)^2
(x-(a+5))×(x+(a+5)
(x-a-5)×(x+a+5)
the answer would be 684.
1/2 plus 1/3 is 5/6.
You have to find the common denominator
7
12-(-3)-2(4)
12-(-3)-8
15-8=7