Question

Please answer only first part step-by-step answer with explanation don’t answer in one word

Answer 1

Answer:

-5

p(-5)=-5+5=0

therefore,-5 is the zero of the polynomial

Answer 2

Answer:

(i) x = (-5)

(ii) x = (0/a)

(iii) x = (-d/c)

Step-by-step explanation:

(i) p(x) = x + 5

p(x) = 0

x + 5 = 0

x = 0 - 5

x = (-5)

(-5) is a zero of the polynomial (x + 5)

(ii) p(x) = ax, a ≠ 0

p(x) = 0

ax = 0

x = 0/a

(0/a) is a zero of the polynomial (ax)

(iii) p(x) = cx + d, c ≠ 0, c and d are real numbers

p(x) = 0

cx + d = 0

cx = 0 - d

cx = (-d)

x = (-d/c)

(-d/c) is a zero of the polynomial (cx+d)

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