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प्रश्न
What should be added to x2 + xy + y2 to obtain 2x2 + 3xy?
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उत्तर
Let a be the required term.
a + (x2 + y2 + xy) = 2x2 + 3xy
a = 2x2 + 3xy - (x2 + y2 + xy)
a = 2x2 + 3xy - x2 - y2 - xy
a = 2x2 - x2 - y2 + 3xy - xy
= x2 - y2 + 2xy
संबंधित प्रश्न
Subtract:
2a2 from − 7a2
Subtract:
\[\frac{ab}{7} - \frac{35}{3}bc + \frac{6}{5}ac \text { from } \frac{3}{5}bc - \frac{4}{5}ac\]
Add: 7mn, 5mn
Add: −9y, 11y, 2y
Multiply the following:
(ab + c), (ab + c)
Add the following expressions:
x3y2 + x2y3 + 3y4 and x4 + 3x2y3 + 4y4
Add the following expressions:
uv – vw, vw – wu and wu – uv
Add the following expressions:
a2 + 3ab – bc, b2 + 3bc – ca and c2 + 3ca – ab
Each symbol given below represents an algebraic expression:
= 2x2 + 3y, 
= 5x2 + 3x, 
= 8y2 – 3x2 + 2x + 3y
The symbols are then represented in the expression:
Find the expression which is represented by the above symbols.
