-16. A negative+a negative=negative.
4
-4 + (-16) = -4 - 16 = -20
-1/16 + 5/16 = 4/16 = 1/4
16 + -5 =
- 12 + 4 = - 8
(5r - 4)(5r + 4)
It is: -16+(-14) = -30
-16 + - 40 = -(16 + 40) = -56
4
x^2 - 8x + 16 = 0(x )(x )You need two numbers that when multiplied are equal to 16, and when added are equal to 8.These two numbers are 4 and 4 (4 * 4 = 16, 4 + 4 = 16)Then you need to figure out if these are positive or negative. Since 16 is positive, you know that the numbers are either both positive or both negative. Since the 8 is negative, you know they must be negative.(x - 4)*(x - 4)
-16+(-10) = -26