Question

Ex 3 dau coroana!!!!!!!

Answer 1

Răspuns:

Explicație pas cu pas:

f+g=3x-2+5x+4

f+g= 8x + 2

f-g= 3x-2 -( 5x+4)

f-g= 3x-2 -5x-4

f-g= -2x -6

fg= (3x-2) ori ( 5x+4)

fg= 15x^2 +12x - 10x -8

Fg= 15x^2 + 12x -8

3f= 3 ori (3x-2)

3f= 9x-6

-5g= -5 ori (5x+4)

-5g= -25x-20

f/g= (3x-2) /(5x+4)

g/f= (5x+4) /( 3x-2)

f^2= (3x-2)^2

f^2= 9x^2 - 12x+ 4

g^2=(5x+4)^2

g^2= 25x^2 + 40x+ 16