examine whether 5+3x is a factor of the polynomial 3x square + 11x + 10...
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Let the 5+3x be the factor
thrn
x = -5/3 be a factor.
hence
p(x) = 3(-5/3)²+11(-5/3)+10 = 25/3-55/3+10 = 0
-30/3 + 10 = 0
-10+10 = 0
LHS = RHS
hence proved it is a factor of the polynomial.
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