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yawa3891 [41]
3 years ago
10

Find the value of 7x^2+2x when x=3

Mathematics
1 answer:
frozen [14]3 years ago
8 0

Answer:

69

Step-by-step explanation:

so x2 will give you 9 times 7 which is 63. add it to 2 times 3 which is 63 + 6 will give you 69.

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Hi there!
The question is asking us to simplify the expression (x² + 3x - 7)(2x - 5) and write the answer in standard form. Here is how you do that - 
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Break it apart - [(x² + 3x - 7)(2x)] + [(x² + 3x - 7)(-5)]
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