Advertisements
Advertisements
Question
Perform the following division:
(– qrxy + pryz – rxyz) ÷ (– xyz)
Solution
We have,
(– qrxy + pryz – rxyz) ÷ (– xyz)
= `(-qrxy + pryz - rxyz)/(-xyz)`
= `(-qrxy)/(-xyz) + (pryz)/(-xyz) - (rxyz)/(-xyz)`
= `(qr)/z - (pr)/x + r`
APPEARS IN
RELATED QUESTIONS
Show that `(4/3 m - 3/4 n)^2 + 2mn = 16/9 m^2 + 9/16 n^2`
If 2x + 3y = 14 and 2x − 3y = 2, find the value of xy.
[Hint: Use (2x + 3y)2 − (2x − 3y)2 = 24xy]
Evaluate the following: 994 × 1006
Expand the following:
(2x + 3y + 4z)2
Simplify:
`(3/4x - 4/3y)^2 + 2xy`
Expand the following, using suitable identities.
(x2y – xy2)2
Expand the following, using suitable identities.
(2x – 5y)(2x – 5y)
Using suitable identities, evaluate the following.
(98)2
Perform the following division:
(3pqr – 6p2q2r2) ÷ 3pq
Match the expressions of column I with that of column II:
Column I | Column II |
(1) (21x + 13y)2 | (a) 441x2 – 169y2 |
(2) (21x – 13y)2 | (b) 441x2 + 169y2 + 546xy |
(3) (21x – 13y)(21x + 13y) | (c) 441x2 + 169y2 – 546xy |
(d) 441x2 – 169y2 + 546xy |