Advertisements
Advertisements
Question
Simplify this expression and find its value if x = 3, a = −1, b = −2.
10 - 3b - 4 - 5b
Sum
Advertisements
Solution
10 - 3b - 4 - 5b on putting b = -2 in the given equation
= 10 - 4 - 3b - 5b
= 6 - 8b
= 6 - 8 × (-2)
= 6 + 16
= 22
shaalaa.com
Is there an error in this question or solution?
RELATED QUESTIONS
Find the value of the following expression, when x = -1:
-x + 2
If a = 2, b = −2, find the value of a2 + ab + b2.
If a = 5 and b = 6, evaluate:
3ab
If x = 8 and y = 2, evaluate:
5x2y
If y = 5 and z = 2, evaluate:
(5z)3
If x = 2 and y = 10, evaluate:
5y2
If x = − 6, evaluate:
`"x"^2/2`
If x = 2 and y = − 4, evaluate:
8x2
If m = − 8 and n = − 2, evaluate:
(4n)2
From the formula B = 2a2 – b2, calculate the value of B when a = 3 and b = − 1.
