Question

If p(x)= x square +2x-5 then find p(-1)

Answer 1

$\purple{\huge{\bold{\mathcal{Answer}}}}$

Given:

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

To find

p(-1)

$p( -1) = ( - 1) {}^{2} + 2( - 1) - 5 \\ = 1 - 2 - 5 \\ = - 1 - 5$

$\purple{\huge{\bold{\mathcal{\boxed{-6}}}}}$

Answer 2

Answer:

p(-1) = (-1)^2 + 2(-1) - 5

= 1 + (-2) -5

= 1 - 7

= -6

so, p(-1) is -6