Advertisements
Advertisements
प्रश्न
Add : 13ab − 9cd − xy, 5xy, 15cd − 7ab, 6xy − 3cd
Advertisements
उत्तर
(13ab − 9cd − xy) + (5xy) + (15cd - 7ab) + (6xy - 3cd)
= 13ab - 7ab - 9cd + 15cd - 3cd + (-xy + 5xy + 6xy)
= 6ab - 12cd + 15cd + 11xy - xy
= 6ab + 3cd + 10xy
APPEARS IN
संबंधित प्रश्न
Evaluate :
b2y − 9b2y + 2b2y − 5b2y
Evaluate :
3x2 + 5xy − 4y2 + x2 − 8xy − 5y2
Subtract : 6a + 3 from a3 − 3a2 + 4a + 1
What must be added to x4 – x3 + x2 + x + 3 to obtain x4 + x2 – 1 ?
If x = 6a + 8b + 9c ; y = 2b – 3a – 6c and z = c – b + 3a ; find :
- x + y + z
- x – y + z
- 2x – y – 3z
- 3y – 2z – 5x
The sides of a triangle are x2 – 3xy + 8, 4x2 + 5xy – 3 and 6 – 3x2 + 4xy. Find its perimeter.
The perimeter of a triangle is 8y2 – 9y + 4 and its two sides are 3y2 – 5y and 4y2 + 12. Find its third side.
The two adjacent sides of a rectangle are 2x2 – 5xy + 3z2 and 4xy – x2 – z2. Find its perimeter.
How much smaller is 15x – 18y + 19z than 22x – 20y – 13z + 26 ?
How much bigger is 5x2y2 – 18xy2 – 10x2y than –5x2 + 6x2y – 7xy?
