Advertisements
Advertisements
प्रश्न
Use the direct method to evaluate the following products :
(8 – b) (3 + b)
बेरीज
Advertisements
उत्तर
(8 – b) (3 + b) = (8 × 3) + (8 × b) + (−b × 3) + (−b × b)
= 24 + 8b − 3b − b2
= 24 + 5b − b2
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
APPEARS IN
संबंधित प्रश्न
Factorise the following using appropriate identity:
4y2 – 4y + 1
Write in the expanded form:
`(a + 2b + c)^2`
Simplify (2x + p - c)2 - (2x - p + c)2
Simplify of the following:
\[\left( \frac{x}{2} + \frac{y}{3} \right)^3 - \left( \frac{x}{2} - \frac{y}{3} \right)^3\]
Find the following product:
(1 + x) (1 − x + x2)
If x = 3 and y = − 1, find the values of the following using in identify:
\[\left( \frac{3}{x} - \frac{x}{3} \right) \left( \frac{x^2}{9} + \frac{9}{x^2} + 1 \right)\]
Evaluate: (6 − 5xy) (6 + 5xy)
If a + b + c = 0, then a3 + b3 + c3 is equal to ______.
Expand the following:
(–x + 2y – 3z)2
Expand the following:
(3a – 2b)3
