Question

If p(x)=3x +5x-8, then find p(1) and p(-2)​

Answer 1

Step-by-step explanation:

p(1)

3+5-8

3-3=0

p(1)=0

p(-2)

3(-2)+5(-2)-8

-6-10-8

-16-8

-24

p(-2)=-24

Answer 2

Answer:

If p(x)=3x +5x-8, then p(1) = 0 and p(-2)​ = -24.

Step-by-step explanation:

Given:  p(x)=3x +5x-8

Find: p(1) and p(-2)

First find p(1)

Put x = 1

p(x)=3x +5x-8

= 8x - 8

p(1) = 8(1)- 8

= 8 - 8

p(1) = 0

Now find p(-2)

Put x = -2

p(x)=3x +5x-8

= 8x - 8

p(-2) = 8(-2)- 8

= -16 - 8

p(-2) = -24