Advertisements
Advertisements
Question
If m = − 8, evaluate:
2m + 21
Sum
Advertisements
Solution
2m + 21
= 2 × m + 21
= 2 × (− 8) + 21
= − 16 + 21
= 5
shaalaa.com
Is there an error in this question or solution?
APPEARS IN
RELATED QUESTIONS
Find the value of the following expression, when x = −1:
2x - 7
If m – 6, evaluate:
2m2 + 3m
If x = 10, evaluate:
100x + 225
If x = – 6, evaluate:
4x2
If x = – 6, evaluate:
2x3
If y = 5 and z = 2, evaluate:
100yz
If a = − 10, evaluate:
`1/5xx"a"^2`
If y = − 8, evaluate:
y2 + 12y
From the formula B = 2a2 – b2, calculate the value of B when a = 3 and b = − 1.
Evaluate -p2 when p = 5.
