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प्रश्न
Find the sum of the following expressions
mn + t, 2mn – 2t, – 3t + 3mn
उत्तर
(mn + t) + (2mn – 2t) + (– 3t + 3mn)
= mn + t + 2mn – 2t + (– 3t) + 3mn
= (mn + 2mn + 3mn) + (t – 2t – 3t)
= (1 + 2 + 3)mn + (1 – 2 – 3)t
= 6mn + (1 – 5)t
= 6mn + (– 4)t
= 6mn – 4t
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संबंधित प्रश्न
Add: x2 - y2 - 1 , y2 - 1 - x2, 1- x2 - y2
Subtract: 5a2 - 7ab + 5b2 from 3ab - 2a2 -2b2
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− 5xy from 12xy
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\[x^2 y - \frac{4}{5}x y^2 + \frac{4}{3}xy \text { from } \frac{2}{3} x^2 y + \frac{3}{2}x y^2 - \frac{1}{3}xy\]
If \[x + \frac{1}{x} = 12,\] find the value of \[x - \frac{1}{x} .\]
Add:
9p + 16q; 13p + 2q
Add:
7a2bc, –3abc2, 3a2bc, 2abc2
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3a(a – b + c), 2b(a – b + c)
The number of scarfs of length half metre that can be made from y metres of cloth is ______.
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.
