mprinbakchachanAnn
Answered

  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)

  1. 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


  1. please wtite the missed signes in equation after - next - 6x*2 and in point
B(x+1)(x ??? 2)(x+9)

Verified Answer :

nobillionaireNobley

f(x) = x^4 + 7x^3 - 7x^2 - 43x + 42
f(1) = 1^4 + 7(1)^3 - 7(1)^2 - 43(1) + 42 = 1 + 7 - 7 - 43 + 42 = 0
Since f(1) = 0, therefore (x - 1) is factor.

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