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What is the coefficient of x^2 in (x^3 + x^2 + x + 1)(x^4 + 3x^3 + 8x + 7x + 1)?

 Nov 20, 2024
 #1
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To find the coefficient of x2, the only posibilities would be ax2*b + cx*dx. 

=x2*1 + x*8x + x*7x

=x2 + 8x2 + 7x2

=16x2

Therefore the coefficient of x2 is 16

 Nov 21, 2024
edited by Sigmamath  Nov 21, 2024

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