Fast!

find the value of the expression 2x4–5x3+x2+3x+2 for:

x=-5

30 points for anyone who does the answer

The value of the expression is 12

Step-by-step explanation:

First set up the expression

2x4 - 5x3 +x2 +3x + 2

Then you plug in for x

2(-5) 4 - 5(-5) 3 + (-5)2 + 3(-5) + 2

After you start multiplying everything out for x

(-10)4 -(-25)3 + (-10) + (-15) + 2

Then you begin to add or subtract

-40 - (-75) - 10 - 15 + 2

-40 + 75 - 25 + 2

35 - 23

12

problem:

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

f(5/2) = 10/3

i hope this !

a

step-by-step explanation:

when a number is between two straight lines it means the absolute value.

to find absolute value you need to know how many numbers is that number away from 0.

when finding absolute value the number will always come out positive

so absolute value of -3 is 3

absolute value of 3/2 is 3/2

absolute value of -2 is 2

absolute value of 3.5 is 3.5

absolute value of -1 is 1

now put these numbers in order:

a)   |-1|, |3/2|, |-2|, |-3|, |3.5|