Question

Me ajuda aí rapaziada ❤

Answer 1

Resposta:

Explicação passo-a-passo:

x^2+4x-12

4^2-4.1.-12

16+48= 64

-4+-8/2

-4-8/2= -12/2=-6

-4+8/2= 4/2=2

S=(2,-6)

x^2-7x+12

-7^2-4.1.12

49-48=1

+7+-1/2

7+1/2= 8/2=4

7-1/2= 6/2= 3

S= (3,4)

x^2-7x+10

-7^2-4.1.10

49-4=9

+7+-3/2

7+3/2= 10/2=5

7-3/2= 4/2=2

S=(2,5)