skyswan skyswan

09-07-2016
Mathematics

Answered

what polynomial has roots of -6 -4 and 1?

Ax^3-9x^2-22x+24
Bx^3-x^2-26x-24

c.x^3+x^2-26x+24

d.x^3+9x^2+14x-24

Verified Answer :

10-07-2016

Hello,
Answer D
(x+6)(x+4)(x-1)
=(x²+6x+4x+24)(x-1)
=(x²+10x+24)(x-1)
=x^3+10x²+24x-x²-10x-24
=x^3+9x²+14x-24

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