Question

p (x) =x^2 -2x-15 , x= -5 , find the value of p(x)​

Answer 1

$p(x) = {x}^{2} - 2x - 15$

$p(x) = ( { - 5}^{2} ) - 2( - 5) - 15$

$p(x) = 25 + 10 - 15$

$p(x) = 20$

Hope it helped u

Answer 2

ᵖ(ˣ)=ˣ

2

−2ˣ−15

ᵖ(ˣ) = ( { - 5}^{2} ) - 2( - 5) - 15ᵖ(ˣ)=(−5

2

)−2(−5)−15

ᵖ(ˣ) = 25 + 10 - 15ᵖ(ˣ)=25+10−15

ᵖ(ˣ) = 20ᵖ(ˣ)=20

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