The operations must take account of the place values of individual digits in the numbers.
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Download photo math and it will let you take a picture of the equation and answer it for you
x^2 - 9 = (x + 3)(x -3)
3x - 9 = 3(x - 3)
and
6
Common denominator would be 6(x+3)(x - 3)
Answer: 6(x+3)(x - 3)
Answer: positive, linear association
Step-by-step explanation: that is the answer, because the dots are rising up in a slope