In a triangle, the sum of the angles is always 180 degrees. Given that angle CAB is 2x² and angle ABC is 3x², we can set up an equation:
2x² + 3x² = 180
Combining like terms:
5x² = 180
To solve for x, we divide both sides of the equation by 5:
x² = 36
Taking the square root of both sides:
x = ±6
Therefore, the value of x can be either 6 or -6.

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