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mihalych1998 [28]
3 years ago
5

Using the distributive property to find the product (y — 4)(y2 + 4y + 16) results in a polynomial of the form y3 + 4y2 + ay – 4y

2 – ay – 64. What is the value of a in the polynomial?
Mathematics
2 answers:
klio [65]3 years ago
4 0
I got a =16.
Hope this helps! :D
Mashcka [7]3 years ago
4 0

Answer:

The value of a is 16    

Step-by-step explanation:

Given the product

(y - 4)(y^2 + 4y + 16)

we have to apply the distributive property express the expression in the form

y^3 + 4y^2 + ay - 4y^2 - ay - 64\text{ to find the value of a}

By distributive property

a(b+c)=a.b+a.c

(y - 4)(y^2 + 4y + 16)

y(y^2 + 4y + 16)-4(y^2 + 4y + 16)

y^3+4y^2+16y-4y^2-16y-64

\text{Compare this equation with }y^3 + 4y^2 + ay - 4y^2 - ay - 64

gives a=16

hence, the value of a is 16

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