Question

wykonaj mnozenie :

A)(x+2)(y+3)

b)(2a+b)(b+1)

c)(2a-3b)(3b+3)

d)(2x-4y)(3x-2)

e)(-2a+b)(6a-4)

f)(4-3a)(-2b+5

) g)(x+y)(a-b+c)

h)(x-y)(a+b-c)

i)(x-y)(a-2b-1)

Answer 1

A)(x+2)(y+3)=xy+3x+2y+6

b)(2a+b)(b+1)=2ab+2a+b²+b

c)(2a-3b)(3b+3)=6ab+6a-9b²-9b

d)(2x-4y)(3x-2)=6x²-4x-12xy+8y

e)(-2a+b)(6a-4)=-12a²+8a+6ab-4b

f)(4-3a)(-2b+5)=-8b+20+6ab-15a

g)(x+y)(a-b+c)=xa-xb+xc+ya-yb+yc

h)(x-y)(a+b-c)=xa+xb-xc-ya-yb+yc

i)(x-y)(a-2b-1)=xa-2xb-x-ya+2yb+y

 

 

 

 

Answer 2

A)(x+2)(y+3)= xy+ 3x +2y+6

b)(2a+b)(b+1)= 2ab +2a+b(2)+b

c)(2a-3b)(3b+3)=6ab+6a+9b(2)

d)(2x-4y)(3x-2)= 6x(2) - 4x -12xy +8y

e)(-2a+b)(6a-4)= -12a(2) + 8a + 6ab - 4b

f)(4-3a)(-2b+5)= -8b +20 +6ab -15a

g)(x+y)(a-b+c)= ax - bx +cx + ay -by +cy

h)(x-y)(a+b-c)=ax +bx - cx -ay - by +cy

i)(x-y)(a-2b-1)= ax -2bx -x -ay +2by + y
(2) -to do kwadratu