Question

1.Fie functia f:R-R f(×)=x^2-11x+30.Sa se calculeze f(0)*f(1)*....f(6)
2.Se considera f7nctia f:R-R f(x)=mx^2+4x-3.Sa se determime m apartine R* pt.care f(1)=4

Answer 1

1.
x^2-11x+30=0
delta=121-120=1
x1=6
x2=5
deci f(5)=f(6)=0
deci f(0)*f(1)*….f(6)=0

2.
f(1)=2m+4-3=2m+1
2m+1=4
m=3/2