Question

r o zwiąż wyrazenia x²+6x+9
a) (x+3) ÷ _______=
x+2
b) a+1
______ ÷ (a+1) =
a-1

c) a²-16 a²+4a
_____ ÷ _____ =
a²-3a 2a-6

d) 16xy² 8x²y
_____ × ____ =
xy x²-2x

Answer 1

B)
a+1
______ ÷ (a+1) =
a-1

a+1........ 1...... ....1
______ * ______ = _______
a-1 .......a+1....... a+1

c)
a²-16.. a²+4a...(a+4)(a-4).....2(a-3).....(a-4)....2
_____ ÷ _____ =___________ * ______=______ *_____=
a²-3a... 2a-6....a(a-3).........a(a+4)>....a.......a

2a-8

.......... x²+6x+9
a) (x+3) ÷ _______=__
a²

a)
(x+3)....x²+6x+9
______ ÷ _______=
x+2

(x+3).....1
______*__________=
x+2......(x+3)(x+3)

1
______
(x+2)(x+3)

d)
16xy² ...8x²y... 16y(xy).....8x(xy)
_____ × ____ =________ *___________=
xy...... x²-2x xy......... x(x-2)