Answer:
3x^2 + 3xz + 2y^2 - 2yz - xy
Step-by-step explanation:
(1) multiply it to get
3x^2 - 3xy + 3xz and 2yx + 2y^2 - 2yz
add similar variables (-3xy + 2yx)
( the order of the variables doesn't matter xy or yx is the same)
we get -xy
and then after that simplifying we get 3x^2 + 3xz + 2y^2 - 2yz - xy
Answer:
Step-by-step explanation:
hello :
3x(x-y+z) + 2y (x+y-z) = 3x²-3xy+3xz +2yx+2y²-2yz
3x(x-y+z) + 2y (x+y-z) = 3x² -xy+3xz -2yz+2y²
Answer:
Here's a story: I had 5 dollars in my piggy bank. My mother gave me 7 more dollars for cleaning my room. I now have 12 dollars. (:
Step-by-step explanation:
Answer:
r = -4
Step-by-step explanation:
The slope of a line is given by
m= (y2-y1)/(x2-x1)
1/2 = (4-r)/(10 - -6)
1/2 = (4-r) (10+6)
1/2 =( 4-r) /16
Multiply each side by 16
16*1/2 = 4-r
8 = 4-r
Subtract 4 from each side
8-4= 4-r-4
4 = -r
Multiply each side by -1
-4 = r
Answer:
-4
Step-by-step explanation:
½ = (r - 4)/(-6 - 10)
½ = (r - 4)/(-16)
r - 4 = -8
r = -4