Question

find the value of p(-1)-p(-2)+p(3) if p(x)=-4x³+3x²-4x-3​

Answer 1

Answer:

-133

Step-by-step explanation:

first put x = -1 in

p(x)=-4x³+3x²-4x-3

we get

p(-1) = -4×(-1)³+3(-1)²-4(-1)-3

= -4×(-1) + 3 +4-3

=4+3+4-3

p(-1) = 8

similarly,

for x = -2

p(-2) = -4×(-2)³+3(-2)²-4(-2)-3

= -4×(-8) + 3×4 +8-3

p(-2) =49

for x= 3

p(3) = -4×(3)³+3(3)²-4(3)-3

= -4×(27) + 3×9 -12 -3

p(3) = -96

then, using these values in

p(-1)-p(-2)+p(3)

= 8 - 49 -96

= -133