Help please! Trigo Functions

[kinuel8091]

Help please! Trigo Functions, How to multiply this?

how to multiply this? √(2√(2)+3) x √3
it's from my earlier post here. i found my mistake but don't know how to multiply this. (i just edited the post)

 

[HallsofIvy]

I find it almost impossible to tell what the problem IS. Surely, it would not be all that hard to type the problem, using, say "√()" for the square root as you do here? But, if I read it correctly, you are asking the wrong question. You do NOT want to "multiply √(2√(2)+3) x √3" you want to divide them. And you can reduce √(2√(2)+ 3)/√(3) by "rationalizing the denominator". Multiplying both numerator and denominator by √3 gives √(6√2+ 9)/3.

 

[kinuel8091]

I find it almost impossible to tell what the problem IS. Surely, it would not be all that hard to type the problem, using, say "√()" for the square root as you do here? But, if I read it correctly, you are asking the wrong question. You do NOT want to "multiply √(2√(2)+3) x √3" you want to divide them. And you can reduce √(2√(2)+ 3)/√(3) by "rationalizing the denominator". Multiplying both numerator and denominator by √3 gives √(6√2+ 9)/3.

Thank you! that's what i meant. i only considered the numerator. i forgot to put the denominator.