Advertisements
Advertisements
प्रश्न
How much is 21a3 – 17a2 less than 89a3 – 64a2 + 6a + 16?
Advertisements
उत्तर
Required expression is
89a3 – 64a2 + 6a + 16 – (21a3 – 17a2)
= 89a3 – 64a2 + 6a + 16 – 21a3 + 17a2
On combining the like terms,
= 89a3 – 21a3 – 64a2 + 17a2 + 6a + 16
= 68a3 – 47a2 + 6a + 16
So, 21a3 – 17a2 is 68a3 – 47a2 + 6a + 16 less than 89a3 – 64a2 + 6a + 16.
APPEARS IN
संबंधित प्रश्न
Subtract the second expression from the first.
(4xy − 9z); (3xy − 16z)
Subtract the second expression from the first.
(14x2 + 8xy + 3y2); (26x2 − 8xy − 17y2)
Subtract: 13x + 12y – 5 from 27x + 5y – 43
Multiply the following:
(pq – 2r), (pq – 2r)
Subtract the following expressions:
–a2 – ab from b2 + ab
Subtract the following expressions:
x4 + 3x3y3 + 5y4 from 2x4 – x3y3 + 7y4
Subtract the following expressions:
4.5x5 – 3.4x2 + 5.7 from 5x4 – 3.2x2 – 7.3x
Subtract the following expressions:
11 – 15y2 from y3 – 15y2 – y – 11
What should be subtracted from –7mn + 2m2 + 3n2 to get m2 + 2mn + n2?
To what expression must 99x3 – 33x2 – 13x – 41 be added to make the sum zero?
