Number of matchsticks required is 2. Rule which matchstick pattern is 2 x n.
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Step-by-step explanation:
−10y2−13u−12y2
=−10y2+−13u+−12y2
=−10y2+−13u+−12y2
=(−10y2+−12y2)+(−13u)
=−22y2+−13u answer
1/2 and 2/3 because they are the biggest numbers.
9/10 and 5/6 because they are the smallest numbers.