Question

1. Verify that x = 3 is a zero of the polynomial
p(x) = 2x - 5x2 - 4x + 3
​

Answer 1

to verify if X=3 is a zero of the polynomial we substitute the value of x in p(X) .if p(X)=0 then x is a solution
p(X)=2x^3. -5x^2. -4x+3

P(3)=2(3)^3 -5(3)^2. -4(3). +3

=2(27)-5(9)-4(3)+3=54-45-12+3=9-12+3=0

so X=3 is a zero of the polynomial

Answer 2

$\huge \bold{heya \: mate}$

Substituting x=3 in the given polynomial,

➡p(x)=2x-5x²-4x+3

➡p(3)=-2x-5x²+3
➡-2(3)-5(3)²+3
➡-6-45+3
➡-48

Hence, x=3 is not a zero of the given polynomial.