Answer:
x = plus or minus 4
Step-by-step explanation:
Let's first simplify this equation by dividing both sides by 3:
3x^2 48
------- = ------ becomes x^2 = 16
3 3
Taking the square root of both sides of x^2 = 16, we get x = plus or minus 4.
SOLUTION
Write out the denominator of the fraction, we have
We want to obtain the least common denominator.
To do this, we need to factorize each of the expression given
Then we factorise the other fraction using difference of two square
The the factorise expression becomes
To obtain the least common denominator, we select the common factor and the product of the other factor,
Hence
Thus
The Least Common Denominator is (x +3)(x+3)(x-3) (Last Option )
Answer:
x = -1
Step-by-step explanation:
Solve for x:
3 (2 x - 1) = 7 x + 5 x + 3
Grouping like terms, 7 x + 5 x + 3 = (5 x + 7 x) + 3:
3 (2 x - 1) = (5 x + 7 x) + 3
5 x + 7 x = 12 x:
3 (2 x - 1) = 12 x + 3
Expand out terms of the left hand side:
6 x - 3 = 12 x + 3
Subtract 12 x from both sides:
(6 x - 12 x) - 3 = (12 x - 12 x) + 3
6 x - 12 x = -6 x:
-6 x - 3 = (12 x - 12 x) + 3
12 x - 12 x = 0:
-6 x - 3 = 3
Add 3 to both sides:
(3 - 3) - 6 x = 3 + 3
3 - 3 = 0:
-6 x = 3 + 3
3 + 3 = 6:
-6 x = 6
Divide both sides of -6 x = 6 by -6:
(-6 x)/(-6) = 6/(-6)
(-6)/(-6) = 1:
x = 6/(-6)
The gcd of 6 and -6 is 6, so 6/(-6) = (6×1)/(6 (-1)) = 6/6×1/(-1) = 1/(-1):
x = 1/(-1)
1/(-1) = -1:
Answer: x = -1
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this what at first 0.273
This is when I moved the decimal once 02.73
This is when I moved the decimal twice 027.3
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