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प्रश्न
What should be the value of a if the value of 2x2 + x − a equals to 5, when x = 0?
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उत्तर
2x2 + x - a = 5, when x = 0
(2 × 0) + 0 - a = 5
0 - a = 5
a = -5
Hence, the value of a is -5.
संबंधित प्रश्न
Find the value of the following expression, when x = −1:
2x2 − x − 2
When a = 0, b = −1, find the value of the given expression:
a2 + ab + 2
Simplify this expression and find its value if x = 3, a = −1, b = −2.
10 - 3b - 4 - 5b
Simplify this expression and find its value if x = 3, a = −1, b = −2.
2a - 2b - 4 - 5 + a
If m = 2, evaluate:
16m – 7
If y = 5 and z = 2, evaluate:
100yz
If a = − 10, evaluate:
3a – 2
If x = − 5 and y = − 8, evaluate:
3y2
The temperature in the Fahrenheit scale is represented by F and the temperature in the Celsius scale is represented by C. If F = `9/5` × C + 32, find F when C = 40.
Evaluate -p2 when p = 5.
