Advertisements
Advertisements
प्रश्न
If m = 9x2 - 4xy + 5y2 and n = - 3x2 + 2xy - y2 find: m + 2n
बेरीज
Advertisements
उत्तर
m = 9x2 - 4xy + 5y2
n = - 3x2 + 2xy - y2
∴ m + 2n
= (9x2 - 4xy + 5y2) + 2 (- 3x2 + 2xy - y2)
= 9x2 - 4xy + 5y2 - 6x2 + 4xy - 2y2
= 9x2 - 6x2 - 4xy + 4xy + 5y2 - 2y2
= 3x2 + 3y2
shaalaa.com
Performs Operations (Addition and Subtraction) on Algebraic Expressions with Integral Coefficients Only.
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
APPEARS IN
संबंधित प्रश्न
Subtract: 5a - 3b + 2c from 4a - b - 2c
Simplify: 3x + 5(2x + 6) - 7x
Simplify: - (7 + 6x) - 7(x + 2)
Simplify: - 2m + 5 + 4(m - 3)
Copy and complete the following multi-plication:
6 - 3x + 2x2
× 1 + 5x - x2
Multiply: pq - pm and p2m
Simplify: `"x"/2+"x"/4`
Simplify: `"2p"/3 -"3p"/5`
Simplify: `"k"/2 + "k"/3 + "2k"/5`
Simplify: `"k + 1"/2 + "2k - 1"/3 - "k + 3"/4`
