Question

f(x)=3x²+5x+2

f(x)=x²+7x-6

f(x)=3x²+x-4

Answer 1

a)
∆= 5²-4*3*2
∆= 25-24
∆=1
x=-5±√1 x'= 5+1 x'= 6\6 x'=1
2*3 6
x"= 5-1/6 x"= 4/6 x"= 2/3