Evaluate 2y squared(x+y) when x=8 and y=3?

Answer 1

2*3^2 is 18 - distribute
18*8=144 - twice
18*3=54 - add
=198 - answer

take the x and y values and substuite them in the equation, remember your order of operations

Answer 2

If I've interpreted your question correctly, you just replace y's with 3 and x's with 8 and solve. so:

2*3^2 *(3+8)= ?

Remember the order of operations

Please excuse my dear aunt sally

or
parenthesis, exponents, multiplication, division, addition, subtraction

so do the parenthesis first and you have

2(3^2)*(11)=?

then exponents,

2*9*11=?

now you just have multiplication

2*9*11 =198

Using the mnemonic device will help you to evaluate the expression.

hope that helps

Answer 3

use EPMDAS
first square 3. 3^2=9.
multipy that by 2. (2x9=18)
add x and y together. (8+3=11)

you get 18(11) or 18 x11
combine. You should get 198

Answer 4

396

Answer 5

396