2 years ago

(s – 7)^2= 0 then, what is the value of: (s-9)(s + 3)?

Mathematics

1 answer:

GrogVix [38]2 years ago

3 0

Answer:

s² - 6s - 27

Step-by-step explanation:

(s - 7)² = 0

s² + 49 - 14s = 0

Now,

(s - 9)(s + 3)

(s × s) + (s × 3) - (9 × s) - (9 × 3)

s² + 3s - 9s - 27

s² - 6s - 27

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