Is (x - 2) a factor of x3 - 4x2 - 11x + 30 ?
yes
no
nothing can be said
none of the above is true
4 Likes
Given,
⇒ x - 2 = 0
⇒ x = 2.
Substituting x = 2 in x3 - 4x2 - 11x + 30, we get :
⇒ 23 - 4(2)2 - 11(2) + 30
⇒ 8 - 4(4) - 22 + 30
⇒ 8 - 16 - 22 + 30
⇒ 38 - 38
⇒ 0.
Since, remainder = 0.
∴ x - 2 is factor of x3 - 4x2 - 11x + 30.
Hence, Option 1 is the correct option.
Answered By
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The remainder, when x3 - x2 + x - 1 is divided by x + 1, is :
0
-4
2
4
If x - 3 is a factor of x2 + kx + 15; the value of k is :
8
3
-5
-8
4x2 - kx + 5 leaves a remainder 2 when divided by x - 1. The value of k is :
-6
6
7
-7
If mx2 - nx + 8 has x - 2 as a factor, then :
2m - n = 4
2m + n = 4
2n + m = 4
n - 2m = 4