Question

find the value of polynomial p(x)=5x^²-3x+5 at x=-1​

Answer 1

Answer:

Step-by-step explanation:

p(x)=5x  

2

−3x+7

At x=1

p(1)=5(1)  

2

−3(1)+7

      =5−3+7

      =9

Answer 2

Step-by-step explanation:

$= 5 {x}^{2} - 3x + 5 \\ at \: x = - 1 \\ \\ = 5 {( - 1)}^{2} - 3( - 1) + 5 \\ = 5 \times 1 + 3 + 5 \\ = 5 + 3 + 5 = 13$