Question

PLEASE HELP! MEDAL AWARDED TO BEST ANSWER! Am I correct? only 5 questions
1. 5√6*2x√6= 10x√36

2. √12*√3xy^2= 6

3. √5x^2 * 3√2x= 3√10x^3

4. 5√45x^3y^2 *√5x= 5√225= 75

5.√3 ( 7-4√3)

Answer 1

For 1, you can simplify further - √36 can be rationalized.
For 2, you missed out the xy^2.
For 3, you're correct.
For 4, you missed out the x^3y^2.
For 5, it's undone - please attempt it.

Thanks.

Answer 2

i couldn't figure out 5 @shiraz14

Answer 3

√3 ( 7-4√3) = 7√3 - 4(√3)(√3) = 7√3 - 12