What should be added to x2 +xy+y2 to obtain 3x2 - 4xy - y2
1 answer:
Answer:
2x² - 5xy - 2y²
Step-by-step explanation:
Subtract x² + xy + y² from 3x² - 4xy - y² to obtain the expression to be added
3x² - 4xy - y² - (x² + xy + y² ) ← distribute by - 1
=3x² - 4xy - y² - x² - xy - y² ← collect like terms
= 2x² - 5xy - 2y²
Thus
adding 2x² - 5xy - 2y² to x² + xy + y² gives 3x² - 4xy - y²
You might be interested in
Answer:
97.35
Step-by-step explanation:
355.5 - 235.5 -22.65
I am subtracting 235.5 and 22.65 from 355.5 because I am spending that much money on the things.
=> 355.5 - 235.5 - 22.65
=> 120 - 22.65
=> 97.35 rupees
So, 97.35 rupees is left
Answer:
x=0,2half1?(I'm
not sure)
6p+p+2-3=8p-8
7p-1=8p-8
1=1p-8
7=1p
p=7
Answer:I don’t know either
Step-by-step explanation:
Answer:
3,498.921
Step-by-step explanation:
