The linear factors of the given polynomial is P(x) = x³ + 3x²-4 = (x-1)(x+2)(x+2).
When a polynomial of higher degree is expressed as the product of two or more factors of lower degree, then they are called linear factors of that polynomial.
Here, the given polynomial is P(x) = x³ + 3x²-4.
Therefore, P(x)
= x³ + 3x²-4
= x²(x - 1) + 4x(x-1) +4(x-1)
= (x-1)(x² + 4x + 4)
= (x-1)(x+2)²
= (x-1)(x+2)(x+2)
Therefore, P(x) = x³ + 3x²-4 = (x-1)(x+2)(x+2).
Learn more about linear factors of a polynomial here: https://brainly.com/question/26354419
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