The expressions that are equivalent to 9x^4 - 4x² are:
A. x²(9x² - 4)
C. (3x² - 2x)(3x² + 2x)
How to Determine Expressions that are Equivalent?
A given expression can be written in another way and still have the same value as its original expression. For example, given the expression, 9x^4 - 4x², we can rewritten by finding a common factor of 9x^4 and 4x².
A common factor of 9x^4 and 4x² is x².
x² into 9x^4 will give you: 9x²
x² into 4x² will give you: 4
Thus, we will have:
9x^4 - 4x² = x²(9x² - 4)
Also, we can factorize 9x^4 - 4x² to given us:
(3x² - 2x)(3x² + 2x)
Therefore, the expressions that are equivalent to 9x^4 - 4x² are:
A. x²(9x² - 4)
C. (3x² - 2x)(3x² + 2x)
Learn more about equivalent expressions on:
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