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Setler [38]
3 years ago
14

5x^2 -15x-140 what method should be use?

Mathematics
1 answer:
elena55 [62]3 years ago
8 0
5x^2 -15x-140

5(x² -(3x) -28)

5(x² +(4x-7x)-28)

5(x(x+4) -7(x+4)

5(x-7)*(x-4)



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Step-by-step explanation:

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An actor invested some money at 5% simple interest, and $41,000 more than 4 times the amount at 9%. The total annual interest ea
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Answer:

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Step-by-step explanation:

  • Let the amount invested at 5% simple interest =$x

He invested $41,000 more than 4 times the amount at 9%.

  • This amount is: $(4x+41000)

Total Annual Interest Earned = $35,260

Therefore, Time=1 year

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Therefore, his total interest

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The amount invested at 5%=$77,000

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