question 2: Try to find a positive integer n such that n^2-n+41 is not a prime.
question 2: Try to find a positive integer n such that n^2-n+41 is not a prime.
I don't think so, because if you let x=1, y=1, square root of (x^2+y^2)=square root of 2, which doesn't equal to x+y
question 1: factor 6x^2-5x+10 question 2: factor kax-kay+shx+shy question 3: factor x^2+16 question 4: factor ab-bp+a-b
another question: Given f(x)=2x-5, construct a function g such that g(f(g(5)))=3