Can anyone answer this Factor f(x)=x2−8x+16

(A) (x−4)2
(B) (x+8)2
(C) (x−8)2
(D) (x+4)2

Which trinomial is a perfect square trinomial?

(A) y2+6y+36
(B) y2+25y+200
(C) y2+18y+81
(D) y2+36y+60

Factor 4x2+36x+81

(A) (2x+9)(2x−9)
(B) (4x+9)2
(C) (2x−9)2
(D) (2x+9)2

Which expression is a factor of 16x2−81?

(A) 4x−9
(B) 8x−9
(C) 4x−81
(D) 8x−81

Factor f(x)=x2−6x+9

(A) (x−9)2
(B) (x−3)2
(C) (x+9)2
(D) (x+3)2

Astudent found the solution below for the given inequality. |x-9|< -4 x-9> 4 and x-9< -4 x> 13 and x< 5 which of the following explains whether the student is correct? -the student is completely correct because the student correctly wrote and solved the compound inequality. -the student is partially correct because only one part of the compound inequality is written correctly. -the student is partially correct because the student should have written the statements using “or” instead of “and.” -the student is completely incorrect because there is no solution to this inequality.