1. which binomial is a factor of f(x) = x^4 + 7x^3 - 7x^2 - 43x + 42?
a. (x - 7)
b. (x - 3)
c. (x - 1)
d. (x + 2)
2. which is the factored form of x3 + 6x2 25x + 18 = 0?
a. (x + 1)(x - 3)(x - 6) = 0
b.(x + 1)(x 2)(x + 9) = 0
c. (x - 1)(x - 3)(x - 6) = 0
d. (x - 1)(x - 2)(x + 9) = 0
3. wtite the missed signes in equation after - next - 6x*2 and in point
b. (x+1)(x 2)(x+9)

The figure shows triangle def and line segment bc, which is parallel to ef: triangle def has a point b on side de and point c on side df. the line bc is parallel to the line ef. part a: is triangle def similar to triangle dbc? explain using what you know about triangle similarity. part b: which line segment on triangle dbc corresponds to line segment ef? explain your answer. part c: which angle on triangle dbc corresponds to angle f? explain your answer. asap