Advertisements
Advertisements
Question
Evaluate: `(2"x"-3/5)(2"x"+3/5)`
Sum
Advertisements
Solution
`(2"x"-3/5)(2"x"+3/5)`
`=(2"x")^2-(3/5)^2` .......[ ∵ (a − b) (a + b) = a2b2]
`=4"x"^2-9/25`
shaalaa.com
Is there an error in this question or solution?
APPEARS IN
RELATED QUESTIONS
Use suitable identity to find the following product:
(x + 4) (x + 10)
Use suitable identity to find the following product:
(3x + 4) (3x – 5)
Evaluate of the following:
(598)3
Simplify of the following:
\[\left( x + \frac{2}{x} \right)^3 + \left( x - \frac{2}{x} \right)^3\]
If \[x + \frac{1}{x}\] 4, then \[x^4 + \frac{1}{x^4} =\]
Evalute : `( 7/8x + 4/5y)^2`
The number x is 2 more than the number y. If the sum of the squares of x and y is 34, then find the product of x and y.
Evaluate, using (a + b)(a - b)= a2 - b2.
999 x 1001
If p + q = 8 and p - q = 4, find:
pq
If m - n = 0.9 and mn = 0.36, find:
m + n
