Rachel filled al 155 shelved in the room with books she place 9 books on each shelf how books did she place on all 15 shelves
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Answer:
Step-by-step explanation:
If you want to make
into a perfect square binomial, take half the linear term, square it, then add it to both sides. Our linear term is 12. Half of 12 is 6, and 6 squared is 36.
The value that makes this a perfect square binomial is 36.
Writing the expression as a square of the binomial is:
Okie, it is not too hard.
Set these numbers a and b, notice a, b positive.
We have a+b=42.
You can see the next on my photo
Or you can use the formula of Cauchy
Set these numbers a and b, notice a, b positive.
We have a+b=42.
You can see the next on my photo
Or you can use the formula of Cauchy