Question

x^2-9x+20 divided by xyz​

Answer 1

Answer:

Step-by-step explanation:

x + 5 = 0 ⇒ x = -5

Replacing x with -5 in equation:

⇒ (-5)² + 9(-5) + 20 = 0

⇒ 25 + (-45) + 20 = 0

⇒ 45 - 45 = 0

⇒ 0 = 0

Hence,

         x² + 9x + 20 is divisible by x + 5

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