Question

Podnieś wyrażenia do kwadratu, stosując wzory skróconego mnożenia:

(2x+3)2 =

(3a-4)2=

(-b+7)2=

(-2c-5)2=

(7x+3y)2=

(4a-5b)2=

(-8c+9)2=

(-11x-3y)2=

(11 /2 x+ 1/3y)2 =

( 2/5x- 1/7 y)2 =

(-3 1/3x+6y)2 =

(-2 1/2 -m )2 =

Answer 1

(2x+3)2 =4x2+12x+9

(3a-4)2=9a2-24a+16

(-b+7)2=b2-14b+49

(-2c-5)2=4c2+20c+25

(7x+3y)2=49x2+42xy+9y2

(4a-5b)2=16a2-40ab+25b2

(-8c+9)2=64c2-144c+81

(-11x-3y)2=121x2+66xy+9y2

(1 1/2 x+ 1/3y)2 =9/4x2+1/3xy+1/9y2

( 2/5x- 1/7 y)2 =4/25x2-2/35xy+1/49y2

(-3 1/3x+6y)2 =11 1/9x2-40xy+36y2

(-2 1/2  -m )2 =25/4+5m+m2