Question

which of the following is a zero of the polynomial p(x)=(x+5)(x-2)​

Answer 1

Answer:

the zeros of the polynomial p(x) = (x+5)(x-2) are -5 and 2

Answer 2

Step-by-step explanation:

if p(x)=x+5

x+5=0

x=-5

then, p(x)=(x+5)(x-2)

p(x)=x×x -2x+5x-10

p(-5)=(-5)×(-5)-2(-5)+5(-5)-10

p(-5)=+25+10-25-10

p(-5)=0

if p(x)=(x-2)

x-2=0

x=2

then, p(x)=(x+5)(x-2)

p(x)=x×x-2x+5x-10

p(2)=(2×2) -2×2+5×2-10

p(2)=4-4+10-10

p(2)=0