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masha68 [24]
2 years ago
11

Factor –7x3 + 21x2 + 3x – 9 by grouping. What is the resulting expression?

Mathematics
2 answers:
spin [16.1K]2 years ago
3 0

Answer:

The answer is the third option

kogti [31]2 years ago
3 0

Answer:

(3–7x²)(x–3)

Step-by-step explanation:

If you apply the distributive property in (3–7x²)(x–3), you obtain:  

3x-9-7x²(x)+21x²

3x-9-7x³+21x²

 

When you order the expression, you have:  

-7x³+21x²+3x-9

 

Then, the answer is (3–7x²)(x–3)

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