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प्रश्न
Find the sum of the following expressions
u + v, u – v, 2u + 5v, 2u – 5v
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उत्तर
(u + v) + (u – v) + (2u + 5v) + (2u – 5v)
= u + v + u – v + 2u + 5v + 2u – 5v
= u + u + 2u + 2u + v – v + 5v – 5v
= (1 + 1 + 2 + 2)u + (1 – 1 + 5 – 5)v
= 6u + 0v
= 6u
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संबंधित प्रश्न
Simplify combining like terms: 3a - 2b - ab - (a - b + ab) + 3ab + b - a
Add: x2 - y2 - 1 , y2 - 1 - x2, 1- x2 - y2
Subtract: -x2 + 10x - 5 from 5x - 10
Subtract:
2a − b from 3a − 5b
Subtract:
\[\frac{3}{2}x - \frac{5}{4}y - \frac{7}{2}z \text { from }\frac{2}{3}x + \frac{3}{2}y - \frac{4}{3}z\]
Subtract the sum of 2x − x2 + 5 and − 4x − 3 + 7x2 from 5.
Multiply: \[\left( \frac{x}{7} + \frac{x^2}{2} \right)by\left( \frac{2}{5} + \frac{9x}{4} \right)\]
Add: 2a + b + 3c and `"a" + 1/3"b" + 2/5"c"`
Add the following expressions:
p2 – q + r, q2 – r + p and r2 – p + q
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.
