Question

find the zero of the polynomial p(x)=3x^2-x-4

Answer 1

3x²-x-4

→ 3x²-4x+3x-4

→ x( 3x-4)+1(3x-4)

→ (x+1) (3x-4)

→ x+1= 0 / 3x-4=0

→ x=-1. / 3x=4

→ x=-1 / x=4\3

→ x=-1, 4\3

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