Help me with math, please!!!?

Question

Combine the following expressions. (All variables under an even root are nonnegative)

2 (square root) 98x^2 - 8x (square root ) 8 - 3 (square root) 72x^2

Multiply. (Assume all expressions Appearing under a square root symbol represent nonnegative numbers)

(( square root) x +2) ((square root) x+1)

Rationalize the denominator in the following.

(Square root) 3 / (square root) 21 - (square root) 3

Solve the equation.

(Square root) 3x +7 = 4

(Square root) 7x+1-6 = 2
<note the -6 is not under the square root>

Answer 1

1) The radical expression is

 

                                                        

                                                         

                                                        

2) The radical expression is

3) The radical expression is

Rationalize the denominator.

                       

                   

                 

                   

                

Answer 2

 

4) The radical equation is

Squaring on each side.

Solution

5) The radical equation is

Squaring on each side.

Solution .