danyellecaballero danyellecaballero

25-10-2018
Mathematics

contestada

he product of a + 3 and –2a2 + 15a + 6 is –2a3 + xa2 + 51a + 18. What is the value of x?

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sqdancefan sqdancefan

29-10-2018

Answer:

9

Step-by-step explanation:

The contributors to the a² term in the product are ...

... 3×(-2a²) + a(15a) = a²(-6+15) = 9a²

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