Advertisements
Advertisements
Question
Add : 13ab − 9cd − xy, 5xy, 15cd − 7ab, 6xy − 3cd
Advertisements
Solution
(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
RELATED QUESTIONS
Evaluate :
7x − 9y + 3 − 3x − 5y + 8
Add : a − 3b + 3; 2a + 5 − 3c; 6c − 15 + 6b
Add : x3 − x2y + 5xy2 + y3, - x3 − 9xy2 + y3, 3x2y + 9xy2
Subtract : 3a − 5b + c + 2d from 7a − 3b + c − 2d
Subtract : a2 + ab + b2 from 4a2 − 3ab + 2b2
Take m2 + m + 4 from −m2 + 3m + 6 and the result from m2 + m + 1.
Subtract the sum of 5y2 + y – 3 and y2 – 3y + 7 from 6y2 + y – 2.
How much more than 2x2 + 4xy + 2y2 is 5x2 + 10xy – y2 ?
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 ?
