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Answer: 0.2
Step-by-step explanation:
subtract 9.38 - 3.5 = 5.88
distribute the 1.2.
7.56 - 8.4x = 5.88
subtract 5.88 - 7.56 = -1.68
-8.4x = -1.68
divide both sides by -8.4
answer = 0.2
The roots of this equation will be x = 6 or x = 8.
You can solve this equation by factorising:
x² - 14x + 48 = 0
Factors of 48:
1 and 48
2 and 24
3 and 16
4 and 12
6 and 8
Because the x-coefficient is negative but the value at the end is positive, we know that both numbers in the brackets must be negative (i.e. (x - a)(x - b) ), so we need to find 2 numbers from the list of factors that when negative and added together give -14. In this case it is -6 and -8.
Therefore your final factorisation is (x - 6)(x - 8) = 0, which gives the solutions x = 6 or x = 8.
I hope this helps! Let me know if you have any questions :)
Answer:
f(x) = 2^x
ln f(x) = ln 2^x
ln f(x) = x ln 2
Step-by-step explanation:
