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 p = −2, find the value of 4p + 7.
If z = 10, find the value of z3 − 3 (z − 10).
If a = – 10, evaluate:
5a
If a = – 10, evaluate:
a2
If m = – 7, evaluate:
2m2
If m = – 7, evaluate:
2m3
If x = 8 and y = 2, evaluate:
(4y)2
If x = 2 and y = 10, evaluate:
30xy
If y = − 8, evaluate:
y2 + 12y
If y = − 8, evaluate:
`"y"^3/4`
