Question

varify that 5 and 7 are zero of P (X) = (X+5) (x-7)​

Answer 1

Step-by-step explanation:

P (X) = (X+5) (x-7)

p(5)= (5+5)(5-7)

=10×(-2)= -20

p(5) doesn't equal to zero

so, 5 is not zero of p(x)

p(7)= (7+5)(7-7)=(12)(0)=0

hence, 7 is a zero of p(x)

p(-5)=(-5+5)(-5+7)=0(2)=0

hence, -5 is a zero of polynomial p(x)