Question

The expression 9x3 -15x can be factored as ax(3x2 -5). What is the value of a?

Answer 1

Answer : a = 3

Explaination :

First let us expand ax(3x² - 5).

You will get 3ax³ - 5ax Now compare it with the expression 9x³ - 15 x.

You will get a = 3.

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