Can someone please explain how the above astronaut problem is different that this problem: A certain law firm consists of 4 senior partners and 6 junior partners. How many different groups of 3 partners can be formd in which at least one member of the group is a senior partner? (Two groups are consi...

Thank you!

Hello... My tutor gave me some homework and he is out of town for a week....

If a^4 - b^4 =65, whats a possible value of b?

I factored...
(a^2-b^2)(a^2+b^2)=65
(a^2-2ab+b^2)(a^2+2ab+b^2)=65

Not sure what to do from here... Can someone help?

I appreciate the help...

Is the only way to solve by plugging in numbers? Because after looking at the problem, that is what I figured was b=2^4

Can we solve for b by factoring out the equation?