Q: What is 16 plus negative 4?

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-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