Factor completely. 9x4 + 12x3 – 45x2 – 60x
a. 3x(x2 – 5)(3x – 4)
b. 3x(x2 – 6)(3x + 10)
c. 3x(x2 – 5)(3x + 4)
d. 3x(x2 + 5)(3x – 4)

 The correct option is

(C)

Step-by-step explanation:  We are given to completely factor the following bi quadratic expression :

Since the given expression does not contain the constant term, so we will take out the x-term common and then will try to factorize the remaining cubic expression.

The factorization of expression (i) is as follows :

Thus, the required factored form of the given expression is

Option (C) is CORRECT.

a is the right answer

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step-by-step explanation:

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