Factorise completely using factor theorem 5x3 + 4x2 - 5x - 4
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Answered by
0
Answer:
15+8-5x-4
23-5x-4
23 -9x
and then solve it
Answered by
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Step-by-step explanation:
=5x^3+4x^2-5x-4
=x^2(5x+4)-1(5x+4)
=(x^2-1) (5x+4)
=x=1 x=-4/5
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