10 ^ { 4 } ( 4 x + 0,2 ) = 10 \cdot ( 10 \sqrt { 2 } ) ^ { 2 } + 400
Solve for x
x=0,01
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10000\left(4x+0,2\right)=10\times \left(10\sqrt{2}\right)^{2}+400
Calculate 10 to the power of 4 and get 10000.
40000x+2000=10\times \left(10\sqrt{2}\right)^{2}+400
Use the distributive property to multiply 10000 by 4x+0,2.
40000x+2000=10\times 10^{2}\left(\sqrt{2}\right)^{2}+400
Expand \left(10\sqrt{2}\right)^{2}.
40000x+2000=10\times 100\left(\sqrt{2}\right)^{2}+400
Calculate 10 to the power of 2 and get 100.
40000x+2000=10\times 100\times 2+400
The square of \sqrt{2} is 2.
40000x+2000=10\times 200+400
Multiply 100 and 2 to get 200.
40000x+2000=2000+400
Multiply 10 and 200 to get 2000.
40000x+2000=2400
Add 2000 and 400 to get 2400.
40000x=2400-2000
Subtract 2000 from both sides.
40000x=400
Subtract 2000 from 2400 to get 400.
x=\frac{400}{40000}
Divide both sides by 40000.
x=\frac{1}{100}
Reduce the fraction \frac{400}{40000} to lowest terms by extracting and canceling out 400.
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