Advertisements
Advertisements
प्रश्न
If a = 2, b = −2, find the value of a2 + ab + b2.
बेरीज
Advertisements
उत्तर
a2 + ab + b2 Putting a = 2 and b = -2 in the given equation
= (2 × 2) + 2 × (-2) + (-2) × (-2)
= 4 - 4 + 4
= 4
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 10: Algebraic Expressions - EXERCISE 10.2 [पृष्ठ १६८]
APPEARS IN
संबंधित प्रश्न
Find the value of the following expression, when x = -1:
x2 + 2x + 1
Simplify this expression and find its value if x = 3, a = −1, b = −2.
10 - 3b - 4 - 5b
If x = 4, evaluate:
`"x"^2/2`
If x = 4, evaluate:
5x2 + 4x
If x = 5 and y = 4, evaluate:
3x2y
If x = 5 and y = 4, evaluate:
3y2
If y = 5 and z = 2, evaluate:
(5z)3
If x = 2 and y = 10, evaluate:
50xy2
If a = − 10, evaluate:
3a – 2
From the formula B = 2a2 – b2, calculate the value of B when a = 3 and b = − 1.
