You need to find factors whose sum is 10 and product is 25. Here, it is a square, and the number is 5.
m^2 +10m +25 = (m+5)(m+5)
X - 4
(3x + 1)(x + 6)
(x + 12)(x + 7)
(x + 10)(x + 4)
x - 4 APEX
(X + 2)(X + 4) Factored
x2+14x+40 = (x+4)(x+10) when factored
(x-4)(x-1)
(x - 6)(x - 7)
(x + 11) and/or (x - 6)
(x - 4) or (x + 8)
x2+5x+6 = (x+2)(x+3)