Question

d) 3x(x² – x +1) - 4x = 5x² + 2(1 – x²)+3x^3 – x

Se poate răspunsul vă rog ?​​

Answer 1

3x^3-3x^2+3x-4x=5x^2+2-2x^2+3x^3-x

3x^3-3x^3-3x^2-5x^2+2x^2+3x-4x+x-2=

-6x^2+x-2=o

a= -6

b=1

C= -2

∆=b^2-4ac

=1+48

=49

√49=7

X1,2= -b+-√∆/2a

X1,2= -1+-7/12

X1= -8/12

X2=6/12