Advertisements
Advertisements
प्रश्न
If x = 4, evaluate:
x2 – 2x
योग
उत्तर
x2 – 2x
= (4)2 − 2(4)
= (4 × 4) − (2 × 4)
= 16 − 8
= 8
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
APPEARS IN
संबंधित प्रश्न
If p = -2, find the value of −3p2 + 4p + 7.
When a = 0, b = −1, find the value of the given expression:
2a2 b + 2ab2 + ab
If x = 4, evaluate:
`"x"^2/2`
If m – 6, evaluate:
5m − 6
If m = 2, evaluate:
15m2 – 10m
If a = 5 and b = 6, evaluate:
3ab
If x = 2 and y = 10, evaluate:
50xy2
If y = − 8, evaluate:
6y + 53
Find T, if T = 2a – b, a = 7 and b = 3.
The wages ₹ W of a man earning ₹ x per hour for t hours are given by the formula W = xt. Find his wages for working 40 hours at a rate of ₹ 39.45 per hour.