√5/49+√20/49−2√45/49
1 answer:
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Most of the square numbers are even.so if we need to find root over we need an even number to convert it to perfect square.
See the example below
- P=3
- B=4
- H=5
Some other triplets are
- (6,8,10)
- (5,12,13)
- (8,15,17)
Answer:
C) 4x^2 -8x +4[/tex]
Step-by-step explanation:
(-2x+2)^2
we apply (a+b)^2 formula
a= -2x and b= 2
Replace 'a' with -2x and 'b' with 2
(-2x)^2 is 4x^2
option C is the answer