Question

for x=2, value of 5x²-a+1 is 10.Find the value of a​

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

If x = 2 and 5x² - a + 1 is 10, then

∴ 5x² - a + 1 = 10

∴ 5(2)² - a + 1 = 10

5(4) - a + 1 = 10

20 - a + 1 = 10

20 + 1 - a = 10

21 - a = 10

21 - 10 = a

∴ a = 11

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