Answer:
you have to use the quadratic equation to find the zeros
Step-by-step explanation:
In ∆BCE
Opposite side to <E=BC
Opposite side to <B=EC
multiply by -3
1/3 gives -3/3=-1
-1*-3=3
3*-3=-9
it defines the function f so that f(x)=-3x
Answer: 89 x 87 =7,743