What is the anwser to 4c2 - 12c + 9?
回答 (4)
2009-07-15 4:46 pm
✔ 最佳答案
4c2-12c+9(2c-3)(2c-3)
C=3/2
2009-07-15 4:44 pm
4c² - 12c + 9
= (2c)² + (2)(2c)(-3) + (-3)²
= (2c - 3)²
= (2c)² + (2)(2c)(-3) + (-3)²
= (2c - 3)²
2009-07-15 5:06 pm
4c^2 - 12c + 9
= 4c^2 - 6c - 6c + 9
= (4c^2 - 6c) - (6c - 9)
= 2c(2c - 3) - 3(2c - 3)
= (2c - 3)(2c - 3)
= (2c - 3)^2
= 4c^2 - 6c - 6c + 9
= (4c^2 - 6c) - (6c - 9)
= 2c(2c - 3) - 3(2c - 3)
= (2c - 3)(2c - 3)
= (2c - 3)^2
2009-07-15 4:45 pm
What is the actual question ? !!!
4 c^2 - 12 c + 9 = ( 2 c - 3 ) ( 2 c - 3 )
As a matter of interest !
4 c^2 - 12 c + 9 = ( 2 c - 3 ) ( 2 c - 3 )
As a matter of interest !
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