√200y^4=
please answer Tomorrow is my exam
Answers
Simplified Root : 10 y2 • sqrt(2)
Simplify : sqrt(200y4)
Step 1 :Simplify the Integer part of the SQRT
Factor 200 into its prime factors
200 = 23 • 52
To simplify a square root, we extract factors which are squares, i.e., factors that are raised to an even exponent.
Factors which will be extracted are :
100 = 22 • 52
Factors which will remain inside the root are :
2 = 2
To complete this part of the simplification we take the squre root of the factors which are to be extracted. We do this by dividing their exponents by 2 :
10 = 2 • 5
At the end of this step the partly simplified SQRT looks like this:
10 • sqrt (2y4)
Step 2 :Simplify the Variable part of the SQRT
Rules for simplifing variables which may be raised to a power:
(1) variables with no exponent stay inside the radical
(2) variables raised to power 1 or (-1) stay inside the radical
(3) variables raised to an even exponent: Half the exponent taken out, nothing remains inside the radical. examples:
(3.1) sqrt(x8)=x4
(3.2) sqrt(x-6)=x-3
(4) variables raised to an odd exponent which is >2 or <(-2) , examples:
(4.1) sqrt(x5)=x2•sqrt(x)
(4.2) sqrt(x-7)=x-3•sqrt(x-1)
Applying these rules to our case we find out that
SQRT(y4) = y2
Combine both simplifications
sqrt (200y4) =
10 y2 • sqrt(2)
Simplified Root : 10 y2 • sqrt(2)
make factors of 200......
to simplify more u can write .........
10×y²√2
(as y⁴ has factors y²×y²)
➡10y² √2
HOPE THIS HELPS U.....