2) 81x2 - 25
(a) (9x - 5) (9x - 5)
(c) (9x - 5)2
(b) (9x - 5) (9x + 5)
(d) (9x + 5)2
Answers
Answered by
3
Step-by-step explanation:
(b) (9x - 5) (9x + 5)
correct one
Answered by
0
5)
(12) 81x2-25 =
A. (9x - 5) (9x-5)
B. (9x - 5) (9x + 5)
C. (9x - 5)2
D. (9x + 5)2
(13) (100x2 - 49) = (10x + 7) =
A. 10x - 7
B. 10x + 7 C. 10x + 49 D. 10x - 49
(14) (4a2 - 20a + 25) = (2a -5) =
A. 2a + 5 B. 2a-5 C. 2a + 25 D. 2a - 25
(15) (x2 + 9x + 18) = (x + 6) =
A.x+3 Box + 6 C.x+2 D. x + 9
(16) Adding
to a? + it becomes a perfect square
trinomial.
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