exam
Maths Puzzle
Numerical Ability
What is the value of k for which the system:
(r^2)+(s^2)=t,
r+s+t=k
has exactly one solution (r,s,t)?
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exam Other Question
Given the functions f(x) = -x2 + 2x + 3 and g(x) = (x-2)2, find g(f(x)). Simplify to remove all parentheses.
thanks for all the help!
x=3y+7
x+y=-5