A^2+b^2=c^2 so 4(4) +3(3) is 16+9= 25 and the square root of that is 5.
This is what i got in the caculator 6400 if not im so so sory
The value of the expression
is 
<h3>How to evaluate the sum?</h3>
The attachment represents the proper format of the question
The summation expression is given as:

Expand the radicands

Evaluate the square roots

Add the like terms

Hence, the value of the expression
is 
Read more about expressions at:
brainly.com/question/723406
#SPJ1
So 4x^2+-2x+-6 then multiply by 5 would be the Area of the entire rectangle using the formula A=bh
You'll get 4x^2 − 2x − 6