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maw [93]
3 years ago
7

Simplify the following expression. Classify the resulting polynomial. 3x(x-3) + (2x + 6)(-x -3)

Mathematics
2 answers:
Svetach [21]3 years ago
6 0

Answer:

quadratic trinomial

Step-by-step explanation:

damaskus [11]3 years ago
3 0

Answer:22(x4

Step-by-step explanation:

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Hello from MrBillDoesMath!

Answer:

4( x + 1.5)^2 + 0  

Discussion:

4x^2 + 12x + 9 =                => factor "4" from first 2 terms

4 (x^2 + 3x) + 9 =               => complete the square, add\subtract (1.5)^2

4(x^2 + 3x + (1.5)^2)  - 4 (1.5)^2 + 9  =

4 ( x + 1.5)^2 + ( 9 - 4(1.5)^2) =           => as (1.5)^2 = 2.25

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4 ( x+ 1.5)^2 + 0


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5 0
3 years ago
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