Question

ache as raizes das equações a) 4x³-6x²=0 e b) 15x^4+20x³

Answer 1

$a) \\ 4x^{3}-6x^{2}=0 \\ 2x^{2} (2x-3)=0 \\ x_{1} =0 \\ x_{2} = \frac{3}{2} \\ b) \\ 15x^{4}+20 x^{3} =0 \\ 5x^{3} (3x+4)=0 \\ x_{1} =0 \\ x_{2} =-4/3$