math hw
posted by David .
2. If a^2b^2=20 and a+b=2, what is the value of ab?
I added the a^2b^2+20 and a+b+20, but i couldn't get the answer to equal ab.

Hey (a^2b^2)= (a+b)(ab) remember
forever
(a+b)(ab) = 20
2(ab) = 20
a  b = 10
Respond to this Question
Similar Questions

Algebra
The (absolute value) x20 (absolute value) is less than or equal to 6. I did it first with six positive and got x is lesss than or equal to 26. Then I made the six negative and got x is less than or equal to 14. But this is impossible … 
Math Check
Solve the inequality. So i have done this problem at least three times and I keep getting the same answer. But in the back of the book the correct answer for this problem is x<or equal to 5 This is what I did & my answer dosen't … 
math
two positive integers I larger value 32 j smaller 20 divide i by j which equal R if r not 0 then reset the value of j to the value of r when r equal 0 what the value of j? 
Algebra 2 Linear Programming
Find the values of x and y that maximize or minimize the objective function. x+y < or equal to 8 2x+y < or equal to 10 x> or equal to 0, y > or equal to 0 A. (0,5) Maximum value is 100 B.(1,7) Maximum value is 220 C.(2,6) … 
Math! Please Check My Awnser!
Hello! I need some help with math! I have tried to do this but I am unsure about my answers. My I will identify my answers with a "<". Also, if I have missed one, please tell me the right answer! Also, Thanks for your help in … 
physics
A circular curve on a highway is designed for traffic moving at 27 m/s. The radius of the unbanked curve is 160 m. What is the minimum coefficient of friction between tires and the highway necessary to keep cars from sliding off the … 
Algebra
Write and then solve the equation for the following. Please correct me if I'm wrong!! 1. If 3x+2x is equal to 15, what is the value of x? 
Basic programming principles
If the value of K is equal to 6, increase the value of A by 5%, if the value of K is equal to 4, decrease the value of A by 8, if the value of K is equal to 7, add the value of B to the value of A, otherwise decrease the value of A … 
math
7x + 5 8x + 9 find the value of x so that both the sum of the equations equal 180 when added together. 
GEN MATH
Solve the ff. problems. Present a complete and systematic solution. 1.) A number added to twice its reciprocal is equal to 11/3. WHat is the number?