Advertisements
Advertisements
Question
Evaluate: (6 − 5xy) (6 + 5xy)
Sum
Advertisements
Solution
(6 − 5xy) (6 + 5xy)
= (6)2 − (5xy)2
= 36 − 25x2y2 .........[ ∵ (a − b) (a + b) = a2b2]
shaalaa.com
Is there an error in this question or solution?
APPEARS IN
RELATED QUESTIONS
Expand the following, using suitable identity:
(2x – y + z)2
Write in the expanded form:
`(2 + x - 2y)^2`
Write in the expanded form (a2 + b2 + c2 )2
If \[x^2 + \frac{1}{x^2}\], find the value of \[x^3 - \frac{1}{x^3}\]
If \[x - \frac{1}{x} = \frac{1}{2}\],then write the value of \[4 x^2 + \frac{4}{x^2}\]
If a + b + c = 0, then write the value of \[\frac{a^2}{bc} + \frac{b^2}{ca} + \frac{c^2}{ab}\]
Find the square of `(3a)/(2b) - (2b)/(3a)`.
Use the direct method to evaluate :
`("a"/2-"b"/3)("a"/2+"b"/3)`
Expand the following:
(3x + 4) (2x - 1)
Expand the following:
(–x + 2y – 3z)2
