Question

Uprosc wyrazenie a nastepnie oblicz wartosc liczbowa :

a) -2xy-x^2y-xy-6x^2y=

x=-4

y=1/2

b) -abc-4a^2b-3abc-c^2b=

a=-1/2

b=-2

c=-1

c) 6ab-ab^2-4ab^2-ab=

a=1/3

b=-6

d) 7xy^2-xy-xy^2-4xy=

x=-6^2

y=-10

Daje naj :) Prosze pomozcie mi jest mi to w tej chwili potrzebne

Answer 1

a) -2xy-x^2y-xy-6x^2y=-3xy-7x^2y= 6+56=62

b)  -abc-4a^2b-3abc-c^2b = -4abc-4a^2b-c^2b=4+2-2=4

c) 6ab-ab^2-4ab^2-ab=5ab-3ab^2=-10-36=-46

d) 7xy^2-xy-xy^2-4xy= 6xy^2-5xy= 21600-1800=19800