Advertisements
Advertisements
प्रश्न
Evaluate: (6 − 5xy) (6 + 5xy)
बेरीज
Advertisements
उत्तर
(6 − 5xy) (6 + 5xy)
= (6)2 − (5xy)2
= 36 − 25x2y2 .........[ ∵ (a − b) (a + b) = a2b2]
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
APPEARS IN
संबंधित प्रश्न
Simplify of the following:
\[\left( x + \frac{2}{x} \right)^3 + \left( x - \frac{2}{x} \right)^3\]
If \[x^4 + \frac{1}{x^4} = 119\] , find the value of \[x^3 - \frac{1}{x^3}\]
Evaluate:
253 − 753 + 503
If a + b + c = 0, then write the value of \[\frac{a^2}{bc} + \frac{b^2}{ca} + \frac{c^2}{ab}\]
Use the direct method to evaluate the following products:
(x + 8)(x + 3)
Use the direct method to evaluate :
`("a"/2-"b"/3)("a"/2+"b"/3)`
Evaluate: (5xy − 7) (7xy + 9)
Evaluate, using (a + b)(a - b)= a2 - b2.
399 x 401
If x + y + z = p and xy + yz + zx = q; find x2 + y2 + z2.
Simplify:
(2x + y)(4x2 - 2xy + y2)
