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?
APPEARS IN
संबंधित प्रश्न
If m = 2, find the value of 9 - 5m.
If p = -2, find the value of −3p2 + 4p + 7.
If a = 2, b = −2, find the value of a2 + b2.
If p = −10, find the value of p2 − 2p − 100.
If a = – 10, evaluate:
a2
If m = – 7, evaluate:
2m3
If a = − 10, evaluate:
a2 + 8a
If m = 9 and n = − 2, evaluate 2m2n
If x = − 5 and y = − 8, evaluate:
2xy2
Evaluate the expression \[n^3+5n^2+5n-2\] n = −2.
