Advertisements
Advertisements
प्रश्न
Use the direct method to evaluate the following products :
(8 – b) (3 + b)
उत्तर
(8 – b) (3 + b) = (8 × 3) + (8 × b) + (−b × 3) + (−b × b)
= 24 + 8b − 3b − b2
= 24 + 5b − b2
APPEARS IN
संबंधित प्रश्न
Find the cube of the following binomials expression :
\[\frac{1}{x} + \frac{y}{3}\]
If a − b = 4 and ab = 21, find the value of a3 −b3
Find the following product:
\[\left( \frac{x}{2} + 2y \right) \left( \frac{x^2}{4} - xy + 4 y^2 \right)\]
If \[x^4 + \frac{1}{x^4} = 623\] then \[x + \frac{1}{x} =\]
Use the direct method to evaluate :
(2+a) (2−a)
If `"a" - 1/"a" = 10;` find `"a" + 1/"a"`
If `"a"^2 + (1)/"a"^2 = 14`; find the value of `"a" + (1)/"a"`
If `"p" + (1)/"p" = 6`; find : `"p"^2 + (1)/"p"^2`
The coefficient of x in the expansion of (x + 3)3 is ______.
Find the value of x3 – 8y3 – 36xy – 216, when x = 2y + 6
