Question

What is the value of p(x) = x2 – 3x – 4 at x = –1?       

Answer 1

p ( -1 ) = ( -1 ) ^2 - (-1) ×3 -4

= 1 + 3 -4

= 0 Ans.

Answer 2

p(x) =$1 - ( - 3) - 4$
=$1 + 3 - 4$
=$- 1 ^{2} - 3 \times - =1 - 4$
=$4 - 4 = 0$