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Jobisdone [24]
3 years ago
12

(3x+4)^3=2197 solve this equation

Mathematics
2 answers:
Burka [1]3 years ago
7 0
(3x + 4)³ = 2197

Taking the cube root in this case is easier, although we can do it the extended way which is complicated.

\sqrt[3]{(3x+4)^3} = \sqrt[3]{2197}
3x + 4 = 13

Now solve normally.

subtract 4
3x + 4 = 13
       -4    -4

3x = 9
Divide by 3 to isolate 3

\frac{3x}{3}  =  \frac{9}{3}
3 and 3 cancels out

x = 3
anygoal [31]3 years ago
3 0
(3x+4)³=2197

3x+4=z

z³=2197
z=∛2197
z=13

Then:
3x+4=13
3x=13-4
3x=9
x=9/3
x=3

answer: x=3

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8 0
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Determine the difference between the monthly payments on a $120,000 home at 6.5% and at 8% for 15 years
slega [8]

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3 0
3 years ago
How do you do these questions?
Alika [10]

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a) - 7 dollars

b) 24.30 dollars

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Step-by-step explanation:

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4 0
2 years ago
In what time will Rs. 5600 amount to Rs. 6720 at 8% per annum?​
Leona [35]

Answer: 2 years

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From the question, old Principal is 5600, new principal =6720, the difference is the interest accrued.

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I hope this helps

8 0
3 years ago
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