Question

Zredukuj wyrazy podobne.
Wzór : 6ab+14a+2+7b-5a+4-2a+3b = 7a+10b+6ab+6
a) 8x+7+2x-6y-2y =
b) 9-4a+6b+7a-6-a =
c) 1-p+4-5p-2r+6p+r =
d) 4xy-2x-3y+8x-xy-2x =


POMOCY!

Answer 1

a) 8x+7+2x-6y-2y = 8x+2x+(6y+(-2y))+7 = 10x-8y+7
b) 9-4a+6b+7a-6-a = (-4a+7a+(-a))+6b+(9-6) = 2a+6b+3
c) 1-p+4-5p-2r+6p+r = (-p +(-5p)+6p)+(-2r+r)+(1+4) = 0p - r + 5 = -r +5
d) 4xy-2x-3y+8x-xy-2x =(4xy-xy)+(-2x+8x+(-2x))-3y = 3xy + 4x - 3y