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x1 = 2x2 = -7
First thing you have to do is look at the number 10 and number 15. which number goes into 10 and 15 , its 5. 5 goes outside the first bracket. = 5( )next you have to find the like terms, both 10pq and 15p...
ln(x)+c
(a). Using Pythagoras' Theorem, (x + 1)2 + (x - 1)2 = x2 + 2. (b). (x + 1) cannot = (x - 1) for any x.
Ratios are best thought of as how to split up one total amount into different portions. People often like to think about a cake; in this particular scenario we are splitting a cake with 9 slices (7 + 2) i...
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