SOLUTION: I am so confused by this problem that I do not even know where to start, could someone please help me, equations involving radicals are new to me and I have a test Friday. Perfo

Question 75178This question is from textbook Intermediate algebra
: I am so confused by this problem that I do not even know where to start, could someone please help me, equations involving radicals are new to me and I have a test Friday.
Perform the indicated operations:
3 squared [48] + 7 squared [12] - squared symbol [75]
where the words "squared and squared symbol" are written there is a checkmark looking symbol. Hopefully someone understands this.
S. Milliron This question is from textbook Intermediate algebra

Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Perform the indicated operations:
3 squared [48] + 7 squared [12] - squared symbol [75]
----------------
I think the check mark is the symbol for "square root".
So your problem is :
3sqrt(48) + 7sqrt(12) - sqrt(75)
=3sqrt(16*3)+7sqrt(4*3) - sqrt(25*3)
=3*4sqrt3 + 7*2sqrt3 - 5sqrt3
= 12sqrt3 + 14sqrt3 -5sqrt3
=21sqrt3
===============
Cheers,
Stan H.

RELATED QUESTIONS
Solve each of the following problems involving percent. 6.5% of what number is 325?... (answered by stanbon)

I don't even know where to start with this problem. Can someone help me. Please... (answered by AAfter Search)

Solving Systems of Linear Equations by the Substitution Method. I am having a... (answered by stanbon)

I am really confused. I am in MM207 and do not understand how to solve this problem.... (answered by stanbon)

Solving Systems of Linear Equations by the Substitution Method. I am having a... (answered by stanbon)

Could someone please help me with a math problem. I need to find out this problem.... (answered by edjones,Edwin McCravy)

Can someone please help me here? I am so confused, I am seeing so many different... (answered by stanbon)