What is the standard form of f(x)=(x+3)(x-2)+(x-1)^2 ?
1 Answer
Jan 17, 2016
2x^2 - x - 5
Explanation:
Expand the brackets ( using FOIL) and collect 'like terms'.
= x^2 - 2x + 3x - 6 + (x - 1 )(x - 1 )
= x^2 + x - 6 +x^2 - x - x + 1 = 2x^2 - x - 5
