Advertisements
Advertisements
Question
If m = 9 and n = − 2, evaluate 2m2n
Sum
Advertisements
Solution
2m2n
= 2 × m × m × n
= 2 × 9 × 9 × (− 2)
= 2 × 81 × (− 2)
= − 324
shaalaa.com
Is there an error in this question or solution?
APPEARS IN
RELATED QUESTIONS
If a = 2, b = −2, find the value of a2 + b2.
Simplify this expression and find its value if x = 3, a = −1, b = −2.
3x - 5 - x + 9
If x = 4, evaluate:
`"x"^2/2`
If x = 4, evaluate:
`"x"^2/8`
If m = – 7, evaluate:
2m2
If m = − 8, evaluate:
2m + 21
If p = − 10, evaluate:
6p + 50
If m = − 8 and n = − 2, evaluate:
3m2n
If x = − 5 and y = − 8, evaluate:
4x2
From the formula B = 2a2 – b2, calculate the value of B when a = 3 and b = − 1.
