Advertisements
Advertisements
Question
Find the value of the following expression, when x = -1:
x2 + 2x + 1
Sum
Advertisements
Solution
x2 + 2x + 1
= (-1) × (-1) + 2 × (-1) + 1
= 1 - 2 + 1
= 0
shaalaa.com
Is there an error in this question or solution?
APPEARS IN
RELATED QUESTIONS
If m = 2, find the value of 3m − 5.
When a = 0, b = −1, find the value of the given expression:
2a2 + b2 + 1
Simplify the expression and find the value if x is equal to 2:
4 (2x - 1) + 3x + 11
If x = 4, evaluate:
x2 – 2x
If m – 6, evaluate:
2m2 + 3m
If a = 5 and b = 6, evaluate:
6a2b
If x = 5 and y = 4, evaluate:
3y2
If x = 2 and y = 10, evaluate:
30xy
If x = − 5 and y = − 8, evaluate:
3y2
Find T, if T = 2a – b, a = 7 and b = 3.
