What is the standard form of # y= (-x+2)^2 + 5x+3 #?
1 Answer
Jan 23, 2016
#x^2 + x + 7 #
Explanation:
Expand using FOIL method :
# (- x + 2 )^2 = x^2 - 2x - 2x + 4 = x^2 - 4x + 4 # y now becomes : y =
# x^2 - 4x + 4 + 5x + 3 # Collect 'like terms' to obtain
# y = x^2 + x + 7 #
