binomial square theorem

(x+y)^2 =x^2 +2xy+y^2 and (x-y)^2=x^2-2xy+y^2

graphing ax^2 + bx + c

forms an opening up or down parabola and can be written in vertex form.

x=-b + or - the square root of b^2 - 4ac all over 2a

used to find negative square roots

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chpater six

Question	Answer
quadratic expressions	ax^2 + bx + c = 0
binomial square theorem	(x+y)^2 =x^2 +2xy+y^2 and (x-y)^2=x^2-2xy+y^2
vertex form of an equation for a parabola	y-k=a(x-h)^2
graphing ax^2 + bx + c	forms an opening up or down parabola and can be written in vertex form.
quadratic formula	x=-b + or - the square root of b^2 - 4ac all over 2a
imaginary numbers	used to find negative square roots
definition of imaginary numbers	i = the sqaure root of -1