Advertisements
Advertisements
प्रश्न
Find the value of the following expression, when x = −1:
2x2 − x − 2
योग
Advertisements
उत्तर
2x2 - x - 2
= 2 (-1) × (-1) - (-1) - 2
= 2 + 1 - 2
= 1
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 10: Algebraic Expressions - EXERCISE 10.2 [पृष्ठ १६८]
APPEARS IN
संबंधित प्रश्न
If m = 2, find the value of 3m − 5.
If a = 2, b = −2, find the value of a2 − b2.
If p = −10, find the value of p2 − 2p − 100.
If m = 2, evaluate:
`1/4xx"m"^3`
If x = 8 and y = 2, evaluate:
(4y)2
If x = 2 and y = 10, evaluate:
(10x)2
If x = 2 and y = 10, evaluate:
5y2
If y = − 8, evaluate:
6y + 53
If x = − 5 and y = − 8, evaluate:
4xy
Evaluate the expression \[n^3+5n^2+5n-2\] n = −2.
