Inter. Algebra
posted by bobpursley .
I find it curious here:
a  b=2 in this case,
rationalize by multplying both sides by a+b, getting
ab=2
a^2b^2=2(a+b)
2x+3x+2=2(a+b)
(x+5)/2 = a+b
now add the original equation..
2= ab
or 2a= 2+ x/2 + 5/2
4sqrt(2x+3)= x+9
square both sides..
16(2x+3)= x^2+18x + 81
x^214x+33=0
(x3)(x11)=0
square root sign 2x+3  square root sign x2 = 2. And the instructions are to solve the equation.
Respond to this Question
Similar Questions

Math
4(j)7=9 Add 7 to both sides of the equation and you get 4 j = 16 Now divide both sides of the equation by 4 and you will find out what the value of j is. Whenever you perform the same mathematical operation on both sides of an equation, … 
algebradistributive
how would you do this prob. negative4(5y+6) = negative 7y+3 thanks. happy halloween I'm going to assume your problem is this: 4  (5y + 6) = 7y + 3 If that's the case, distribute the negative over the terms in the parentheses first: … 
Algebra
Can you explain to me how to solve this equation? 
algebra
I need a step by step explanation on how to add these two equations 2x+3y=1 5x+3y=16 Subtract the first equation from the second. (Subtract left and right sides separately). This gives you 3x = 15 Then divide both sides by 3. x = 5 … 
Pre Algebra
Here is another one I need help with. 5x+20=60 ( remember it is a equation with variables and integers.) Thank you once agian add 20 to both sides 5x=40 then multiply both sides by 1/5 x=8 Lance, Nice job, but you missed a negative … 
science
rearrange this equation 2 make x the subect. 6y = 9  3x so first i add 3x to both sides which makes it 3x  6y = 9 then do i divide both sides by 9 or wat? 
Pre Cal.Check my work?
Solve the system of equations: x  y  z = 2; x + 2y  2z = 3; 3x  2y  4z = 5? 
Algebra
89. Solve for x in the equation: 6/7x  6 = 2 I posted this before, and this is the reply I got from someone: multiply both sides by 7 6x42=14 add 42 to each side 6x=28 x=14/3 But I don't get how this is done because to eliminate … 
algebra
could someone check my answers to these few questions? 
Algebra
Which of the following describes a correct method for solving the equation below?