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madam [21]
2 years ago
15

Expand & Simplify

Mathematics
2 answers:
Talja [164]2 years ago
8 0

Answer:

10x^2-15x-5

Step-by-step explanation:

(3x-3)^2 + (x+4)(x-1)

9x^2-18x+9+x^2+3x-4

10x^2-15x+5

DaniilM [7]2 years ago
6 0

Answer:

{(3x - 3)}^{2}  + (x + 4)(x - 1) \\  =  {(3x)}^{2}  - 2 \times 3x \times 3 +  {3}^{2}  + ( {x}^{2}  - x + 4x - 4) \\  =  {(3x)}^{2}  - 18x + 9 +  {x}^{2}   + 3x - 4 \\  = 9 {x}^{2}  +  {x}^{2}  - 18x + 3x + 9 - 4 \\  = 10 {x}^{2}  - 15x + 5 \\ thank \: you

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posledela

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Answer:

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2 years ago
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