Question

check whether (x+2) is a factor of x3+5x2-7x+3


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Answer 1

Step-by-step explanation:

P(x) = x3+5x2-7x+3

(x+2) = 0

x = -2

P(-2) = (-2)^3+5(-2)^2-7(-2)+3

= -8 + 5×4 + 14 +3

= 12+14+3

= 29

remainder is not zero so,

x + 2 is not a factor of x3+5x2-7x+3