Advertisements
Advertisements
प्रश्न
How much is 21a3 – 17a2 less than 89a3 – 64a2 + 6a + 16?
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.
(5x + 4y + 7z); (x + 2y + 3z)
Subtract the second expression from the first.
(14x2 + 8xy + 3y2); (26x2 − 8xy − 17y2)
Subtract: −2(xy)2 (y3 + 7x2y + 5) from 5y2 (x2y3 – 2x4y + 10x2)
The subtraction of 5m from −3m is _____________
Subtract: 4k from 12k
Subtract: 13x + 12y – 5 from 27x + 5y – 43
Subtract:
6x2 – 4xy + 5y2 from 8y2 + 6xy – 3x2
The subtraction of 5 times of y from x is ______.
If P = –(x – 2), Q = –2(y + 1) and R = –x + 2y, find a, when P + Q + R = ax.
From the sum of x2 – y2 – 1, y2 – x2 – 1 and 1 – x2 – y2 subtract –(1 + y2).
