Question

Find the Coefficient of x' in the expansion of (3x + 2x²)9
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Answer 1

Answer:

27

Step-by-step explanation:

(3x +2x²) x 9

27x + 18x²

∴ the coeffiecnet   of x is  27

Answer 2

Answer:

=3x+2xaquare

=3+2+3x

=3x=5

x=5upon3

x=1.67

hence proved