Question

11/ 89 podręcznik 2 gimnazjum ( matematyka 2001)

a) (x+z)(b+1)

b) (a+b)(12-b)

c) (a-b)(5b-9)

d) (x+5z)(b-11)

e) (a-6b)(-8-13b)

f) (a-4b)(2b-7a)

12/89 podręcznik 2 gimnazjum ( matematyka 2001)

a) (x+2+y)(z+1)

b) (a+b)(7-b+4c)

c) (p-2s+5t)(5p-3)

Prosze o DOBRE rozwiazanie szybko .dzieki z góry .;D ":))

Answer 1

a)  (x+z)(b+1)=xb+x+zb+1

b)  (a+b)(12-b)=12a-ab+12b-b^2

c)  (a-b)(5b-9)=5ab-9a-5b^2+9b

d)  (x+5z)(b-11)=xb-11x+bz-55z

e)  (a-6b)(-8-13b)=-8a-13ab+48b+78b^2

f)  (a-4b)(2b-7a)=2ab-7a^2-8b^2+28ab

a) (x+2+y)(z+1)=xz+z+2z+2+yz+y

b) (a+b)(7-b+4c)=7a-ab+4ac+7b-b^2+4bc

c) (p-2s+5t)(5p-3)=5p^2-3p-10ps+6s+25pt-15t

Answer 2

a) (x+z)(b+1)=bx+x+zb+z

b) (a+b)(12-b)=12a-ab+12b-b2

c) (a-b)(5b-9)=5ab-9a-5b2+9b

d) (x+5z)(b-11)=bx-11x+5bz-55z

e) (a-6b)(-8-13b)=-8a-13ab+48b+78b2

f) (a-4b)(2b-7a)=2ab-7a2-4b2+28ab

 

a) (x+2+y)(z+1)= xz+x+2z+2+yz+y

b) (a+b)(7-b+4c)=7a-ab+4ac+7b-b2+4bc

c) (p-2s+5t)(5p-3)=5p2-3p-10ps+6s+25pt-15t