math,algebra,help
posted by Jasmine20 .
Directions are simplify by combining like terms.
x radiacal 18 3 radical 8x^2
can someone show me how to do these types of problems. thanks
I cant determine the second term. For the first, I think you meant
x sqrt(18) which reduces to
x sqrt (9*3) or
3x sqrt 3
First remove squares from under the radical sign
x sqrt(18) = x sqrt (9*2) = 3x sqrt 2
and
3 sqrt(8x^2) = 3 sqrt (4*2*x^2)
= 6x sqrt 2
Now combine terms.
x sqrt(18)  3 sqrt(8x^2)
= sqrt 2*(3x  6x) = 3x sqrt 2
You can get other possible answers by using the negative square roots. For example
x sqrt(18) = x sqrt (9*2)
= (+ or ) 3x sqrt 2
Respond to this Question
Similar Questions

Math
thanks for the answers, but I need to know how to solve the problems, so I can finish the remainder of my homework. Use a power of ten to change each to a decimal. 2 1/2 4 1/25 I need to learn how to solve these types of problems. … 
math, algebra,correction
I don't know if this is right. directions: Simplify each radical expression. (radical 3+5)(radical 33) i think its: radical 3+2 Life would be so much simpler if you would use parenthesis. Did you mean this? 
math,correction,plz
can someone correct these for me plz. Simplify by combining like terms. Problem#32 radical(63) minus 2radical(28) plus 5radical(7) My answer: 4radical(7) Find the perimeter of the triangle shown in the figure. leg...1 = radical (5) … 
math,correction
Simplify by combining like terms. Problem #32 radical (63)  2 radical (28) + 5 radical (7) My answer: 4radical(7) Problem #50 Find the perimeter of the triangle shown in the figure. leg 1 = radical (5)  radical (3) leg 2= radical … 
math,algebra
I need help if someone can show me the steps to these 2 problems. Problem #1 Use the properties for radicals to simplify each of the following expressions. Assume that all variables represent positive real numbers. radical and inside … 
math,correction
Problem #1 Simplify by combining like terms. xã(18) 3ã(8x^2) My answer: 3xã(2) Problem #2 Simplify each radical expression. (ã(3) + 5)(ã(3)  3) My answer: 12 see my previous post, don't understand your symbol ã … 
math , help,algebra
i am up to this point in my problem but i don't know what to do next with it can someone show me. Directions: Simplify by combining like terms x radical(18) minus 3radical(8x^2) these are the steps that i've done so far. = x radical … 
math,algebra II
I have to work with these types of problems dealing with matrises can someone show me how to solve them.Heres one of them: Directions: Find the values of the variables in each equation in the first matrix it looks like this a+2 3z+1 … 
math
Can someone show me the steps necessary to simplify the expression by combining like terms? 
Math (PreAlgebra)
How do you simplify this equation by combining like terms or using the distributive property?