Final answer:
To factor out the greatest common factor in the expression 6x⁴-18x³+30x², divide each term by the greatest common factor, which is 6x². The factored form of the expression is 6x²(x² - 3x + 5).
Step-by-step explanation:
To factor out the greatest common factor, we need to identify the common factors of the terms in the expression. In this case, the greatest common factor is 6x². We can factor it out by dividing each term in the expression by 6x²:
6x⁴-18x³+30x² = 6x²(x² - 3x + 5)
Therefore, the factored form of the expression is 6x²(x² - 3x + 5).