X square - 3 X minus 18 factories it
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Answer:
(x-6)(x+3)
Step-by-step explanation: x²-3x-18
⇒ x²-(6-3)x-18
⇒ x²-6x+3x-18
⇒ x(x-6)+3(x-6)
⇒ (x-6)(x+3)
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