Write x2+10x−3x^2 + 10x - 3x2+10x−3 in the form (x+a)2+b(x + a)^2 + b(x+a)2+b where a a\,a and b b\,b are integers.
Hence, or otherwise, write down the coordinates of the turning point of the graph of y=x2+10x−3y = x^2 + 10x - 3y=x2+10x−3
