Question

Wykonaj mnożenie:

zad1.

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

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

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

HELP!

Answer 1

a) (x+2+y)(z+1)=xz+x+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) xz+x+2x+2+yz+y=xz+x+yz+2x+4

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

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

 

 

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