Question

Tính x:

288 - (88+5^4) - (4x^4 -200) = 416

Answer 1

\(288-\left(88+5^4\right)-\left(4x^4-200\right)=416\)

\(\Leftrightarrow288-88-625-4x^4+200=416\)

\(\Leftrightarrow-4x^4-225=416\)

\(\Leftrightarrow-4x^4=641\)(vô lý)

Answer 2

288 - (88 + 5⁴) - (4x⁴ - 200) = 416
<=> 288 - 88 - 625 - 4x⁴ + 200 = 416

<=> 288 - 88 - 625 - 416 + 200 = 4x⁴

<=> -641 = 4x⁴

<=> x⁴ = -160,25

<=> x = \(-\sqrt[4]{160,25}\) = -3,557947288 \(\approx\) -3,56