Which of the following polynomial functions has zeros at 7 and -7? y = (x − 7)2 y = (x + 7)2 y = (x − 2)7 y = (x + 7)(x − 7)

y=(x+7)(x-7) are the polynomials functions which has zeros at 7 and-7.

Solution:

Given polynomials are  

 --- eqn 1

 --- eqn 2

 ---  eqn 3

y=(x+7)(x-7) --- eqn 4

Substitute x value as 7 and -7 for eqn 1 polynomials

Substitute x value as 7 and -7 for eqn 2 polynomials

Substitute x value as 7 and -7 for eqn 3 polynomials

Substitute x value as 7 and -7 for eqn 4 polynomials

y=(x+7)(x-7) = (7+7)(7-7) = (14). (0) = 0

y=(x+7)(x-7) = (-7+7)(-7-7) = (0) (-14) = 0

Hence y=(x+7)(x-7) are the polynomials functions which has zeros at 7 and-7.

4 puzzles in 3 hours

step-by-step explanation:

the final price would be 29.6925

step-by-step explanation:

39.59 minus 25% equals 29.6925