Question

\(3x^2+17x^2=6x+13\)

Answer 1

\(3x^3+17x^2-6x-13=0\)

\(x\approx0,72;x\approx-5,88;x\approx-0,76\)

Answer 2

Ta có: 

<=> (3 + 17) . x ² = 6x + 13

=> 20x² = 6x + 13

=> 

Answer 3

\(\Leftrightarrow20x^2=6x+13\)

\(\Leftrightarrow20x^2-6x-13=0\)

denta giải tiếp

Answer 4

Ta có: 

<=> (3 + 17) . x ² = 6x + 13

=> 20x² = 6x + 13

=> 20x² - 6x - 13 = 0

=> x.(20x - 6) - 13 = 0

=> x.(20x - 6) = 13

=> x = 13 : (20x - 6)

=> x = 13 : 20x - 13 : 6