Advertisements
Advertisements
प्रश्न
If m = 9x2 - 4xy + 5y2 and n = - 3x2 + 2xy - y2 find: 2m - n
बेरीज
Advertisements
उत्तर
m = 9x2 - 4xy + 5y2
n = - 3x2 + 2xy - y2
∴ 2m - n
= 2 (9x2 - 4xy + 5y2) - (- 3x2 + 2xy - y2)
= 18x2 - 8xy + 10y2 + 3x2 - 2xy + y2
= 18x2 + 3x2 - 8xy - 2xy + 10y2 + y2
= 21x2 - 10xy + 11y2
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 - 2b from b + 6c
Subtract: 4x2 - 5x2y + y2 from - 3y2 + 5xy2 - 7x2 - 9x2y
By how much is 3x3 – 2x2y + xy2 -y3 less than 4x3 – 3x2y – 7xy2 +2y3
If x = 4a2 + b2 - 6ab; y = 3b2 - 2a2 + 8ab and z = 6a2 + 8b2 - 6ab find: x - y - z
Evaluate: (3x - 2y)(4x + 3y)
Simplify: `"3a"/8 + "4a"/5 - ("a"/2 + "2a"/5)`
Simplify: `"y"/5 + "y" - "19y"/15`
Simplify: `"x" + "x + 2"/3`
Simplify: `"m"/5 - "m - 2"/3 + "m"`
Simplify: `("p" + "p"/3)("2p" + "p"/2)("3p" - "2p"/3)`
