Answer:
4.) 2x² +5x + 2
Answer: (2x+1) (x+2)
Using Foil Method
= 2x²+4x+x+2
= 2x² + 5x + 2
5.) 6b² +25bc - 9c²
Answer: (3b - c) (2b + 9c)
= 6b² + 27bc - 2bc - 9c²
= 6b² + 25bc - 9c²
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Answers & Comments
Answer:
4.) 2x² +5x + 2
Answer: (2x+1) (x+2)
Using Foil Method
= 2x²+4x+x+2
= 2x² + 5x + 2
5.) 6b² +25bc - 9c²
Answer: (3b - c) (2b + 9c)
Using Foil Method
= 6b² + 27bc - 2bc - 9c²
= 6b² + 25bc - 9c²