What is the simplified form of the expression? show your work 2√18-5√32

show all your steps to simplify the expression below.
3(x^4y^6)^5

(3x^6y^3)^5

Use the following information for questions 4 - 5 use 2^2x-3=(1/16)^3x+9

which one is wrong and why it is wrong

1. 2^2x-3=(2)^4(3x+9)
2. 2^2x-3=(2)^12x+36
3. 2x-3=12x+36
4. -3=10x+36
5. -39=10x
6. -3.9=x

Lilah deposited $315 into her savings account that is compounded quarterly at an annual rate of 6%. How much money will Lilah have in her account, to the nearest cent, after 7 years if she makes no additional deposits? show your work