math
posted by ally .
1)Which values of x are in the solution set
y=3x1
y=x^25x+6
2)6ab (radical8b)3a radical(32b^3)+9ab (radical5b)
3) write in simplest form (2/x+4/y)/(4x/yy/x)
4)solve for all values of x
8x^3+4x^218x9
5)abs(4x+6)4x=10
6) simplify 4x^5y7 /(3x^3y^8)^3

1) set the two equations equal to each other:
3x1 = x^25x+6
Combine like terms:
x^28x+7 = 0
Factor:
(x1)(x7)=0
x = 1, 7 
2)
6ab√8b  3a√32b^3 + 9ab√5b
= 6ab*2√2b  3a(4b√2b) + 9ab√5b
= 12ab√2b  12ab√2b + 9ab√5b
= 9ab√5b
3)
(2/x+4/y)/(4x/yy/x)
= (2y+4x)/xy / (4x^2  y^2)/xy
= (y+2x)/(2xy)(2x+y)
= 1/(2xy)
4)
8x^3 + 4x^2  18x  9
= (2x+3)(2x3)(2x+1)
x = 3/2, 1/2, 3/2
5)
4x+6  4x = 10
If 4x+6 >= 0, 4x+6 = 4x+6 and you have
4x+6  4x = 10
6 = 10
no solutions there
If 4x+6 < 0, 4x+6 = (4x+6) and you have
4x6  4x = 10
8x = 16
x = 2
But, if x = 2, 4x+6 > 0, so no solution there
no solutions there
6)
4x^5 y^7 /(3x^3 y^8)^3
4x^5 y^7 * (3x^3 y^8)^3
4x^5 y^7 * 27x^9 y^24
108x^4 y^17
or, 108x^4/y^17
Respond to this Question
Similar Questions

MATH
solve 1(2/x)=2/(x+2) Express your answer in simplest radical form. What is radical form ne how? 
algebra 2
Would some one look at these problems and see if I got them right Thanks Just let me if they are wrong so I can go back over them 1.Write in simplest form 48/56 A. 6/7 2.Multiply 8x^3/5 *10/x^3 A. 16/x^4 3.Divide 4/x^7 / 12/x^3 A. … 
math
x^2= 6x+11 solve the quadratic equation for values of x expressed in simplest radical form 
Math help
Help with any of these would be greatly appreciated! THANK YOU! 1. How would i solve 3x^2  4 = 0? 
math
Describe all the integer values of x that satisfy abs(x)is less thatn abs(x+1) 
MathInvoling i's
1)What is the product of 5+ Radical (36) and 1Radical (49) expressed in simplest a+bi Form? 
alg2/trig
1)3x^212x21 solve by completing the square in simplest radical form 2) (1/x+3)(2/3x)=(4/x^29)find values of x 3)3/radical(3a^2b^4) is equivalent to 4) factor completely 27x^75x^4 
Math (Simplest Radical Form)
How do you figure out simplest radical form with variables and/or exponents and/or numbers outside the square root 
Math Proof
Prove that for all integers n > or = 1 and all real numbers x subscript 1, x subscript 2,...., x subscript n. absolute value of (x subscript 1+ x subscript 2+...+ x subscript n) <or= abs(x subscript 1) + abs( x subscript 2)+..+ … 
PreCalculus
Simplify the rational expression and then add or subtract. Express answers in simplest form and identify all nonpermissible values. (The nonpermissible value is not the issue. It is the simplification) 3x + 15/x^225 + 4x^2 1/ 2x^2 …