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Harmony Sanford
Mathematics
10 November, 23:35
I don't understand how to solve this
9x^2 - 16 = 0
+4
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2
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Landyn Sellers
10 November, 23:38
0
(3x-4) (3x+4)
Step-by-step explanation:
a^ 2 - b^ 2 = (a + b) (a - b)
9 x 2 - 16 = (3 x) ^ 2 - (4) ^2
(3 x) ^2 - (4) ^2 = (3 x - 4) (3 x + 4)
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Fifi
10 November, 23:48
0
You will be solving for X. x = 4/9
Step-by-step explanation:
You start by adding 16 to both sides.
then you have 9x^2 = 16
take the square root of each side
so you are left with 9x=4
then you divide each side by 9 to find the value of x
in this case, x=4/9
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