Advertisements
Advertisements
प्रश्न
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.
उत्तर
Given, = 2x2 + 3y, = 5x2 + 3x and = 8y2 – 3x2 + 2x + 3y
∴
= (2x2 + 3y) + (5x2 + 3x) – (8y2 – 3x2 + 2x + 3y)
= 2x2 + 3y + 5x2 + 3x – 8y2 + 3x2 – 2x – 3y
On combining the fike terms,
= 2x2 + 5x2 + 3x2 + 3y – 3y + 3x – 2x – 8y2
= 10x2 – 8y2 + x
APPEARS IN
संबंधित प्रश्न
Add: a + b - 3, b - a + 3, a - b + 3
From the sum of 3x - y + 11 and - y - 11, subtract 3x - y - 11.
Add the following algebraic expression:
3a2b, − 4a2b, 9a2b
Subtract:
2a2 from − 7a2
Subtract:
2x3 − 4x2 + 3x + 5 from 4x3 + x2 + x + 6
Multiply: \[\left( \frac{x}{7} + \frac{x^2}{2} \right)by\left( \frac{2}{5} + \frac{9x}{4} \right)\]
Find the sum of the following expressions
u + v, u – v, 2u + 5v, 2u – 5v
Add:
7a2bc, –3abc2, 3a2bc, 2abc2
Add:
2p4 – 3p3 + p2 – 5p + 7, –3p4 – 7p3 – 3p2 – p – 12
Multiply the following:
(ab + c), (ab + c)
