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GaryK [48]
3 years ago
13

Is c^2 - 6c +9 a perfect square?

Mathematics
2 answers:
katrin [286]3 years ago
6 0

Answer:(c-3)(c-3) yes

Step-by-step explanation:

C²-6c-9

(c²-3c-)(3c+9)

c(c-3)-3(c-3)

(c-3)(c-3)

Anni [7]3 years ago
3 0

Step-by-step explanation:

{c}^{2}  - 6c + 9 \\  =  {c}^{2}  - 2 \times 3 \times c +  {3}^{2}  \\  = (c - 3)^{2}  \\

Therefore, c^2 - 6c +9 is a perfect square.

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