Answer :
p(u) = 0
⇒ 4u2 + 8u = 0
⇒ 4u(u + 2) = 0
⇒ u = 0 and u = -2
Hence, -2 and 0 are zeroes of the polynomial 4u2 + 8u.
Now,
Sum of zeroes = -2 + 0
⇒ Sum of zeroes = -2
Product of zeroes = -2 × 0
⇒ Product of zeroes = 0
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