144x^2 - 36
Since 36 is a factor of 144, it is automatically the GCF and can be factored out. That leaves (4x^2 - 1) which is the difference of two squares. The answer is 36(2x - 1)(2x + 1)
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It is: The product of 122 is 144
x + 8 < 144
12 squared is 144.
12 squared is 12x12 which is 144 ( one hundred and forty four ) 12² = 144
144 + 0