Question

Check whether 1,-1 and 1/4 are zeroes of the polynomial p(x)=4x^2+3x-1.​

Answer 1

Step-by-step explanation:

p(1)=4×1^2+3×1-1

=4+3-1

=6

p(x)is not zero at 1

p(-1)=4×(-1)^2+3×(-1)-1

=4-3-1

=0

p(x)is zero at 1

p(1/4)=4×1/16+3/4-1

=1/4+3/4-1

=(1+3-4)/4

=0/4

=0

p(x)is zero at 1