Clarke57 Clarke57

11-10-2021
Mathematics

contestada

How do u factorise: x²-x-6= (x+2) ( )

Respuesta :

RubixSolver RubixSolver

12-10-2021

Answer:

x=−2 or x=4

Step-by-step explanation:

Step 1: Subtract x+2 from both sides.

x2−x−6−(x+2)=x+2−(x+2)

x2−2x−8=0

Step 2: Factor left side of equation.

(x+2)(x−4)=0

Step 3: Set factors equal to 0.

x+2=0 or x−4=0

x=−2 or x=4

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