Question
5-3ã2 multiplied by its conjugate is...
Its supposed to be 7, but I don't get how to do this, cause now im totally confused, i thought that the conjugate came when you were to rationalize a denominator...
I did this...
15ã2-9ã4
15ã2-18
Its supposed to be 7, but I don't get how to do this, cause now im totally confused, i thought that the conjugate came when you were to rationalize a denominator...
I did this...
15ã2-9ã4
15ã2-18
Answers
Steve
Well, if you figure that 5^2 = 25, not 15, you'll be on your way