Advertisements
Advertisements
Question
When a = 0, b = −1, find the value of the given expression:
2a + 2b
Sum
Advertisements
Solution
2a + 2b Putting a = 0 and b = -1 in the given equation
= 2 × (0) + 2 × (-1)
= 0 - 2
= -2
shaalaa.com
Is there an error in this question or solution?
Chapter 10: Algebraic Expressions - EXERCISE 10.2 [Page 168]
APPEARS IN
RELATED QUESTIONS
Find the value of the following expression, when x = -1:
-x + 2
If a = 2, b = −2, find the value of a2 − b2.
Simplify the expression and find the value if x is equal to 2:
3 (x + 2) + 5x - 7
Simplify this expression and find its value if x = 3, a = −1, b = −2.
3a + 5 - 8a + 1
If x = 10, evaluate:
6x2 – 25x
If x = 8 and y = 2, evaluate:
(4y)2
If y = 5 and z = 2, evaluate:
9y2z
If y = 5 and z = 2, evaluate:
5y2
If x = − 5 and y = − 8, evaluate:
2xy2
Find T, if T = 2a – b, a = 7 and b = 3.
