(w-v)²+2v-7w if w=-4 and v=1

55

Step-by-step explanation:

first you plug in the numbers where they belong...

(-4-1)²+2(1)- 7(-4)

now you do the Order of Operations

P  anything in ()

E exponents (²)

M multiplication

D division

A addition

S  subtraction

first do (-4-1)²

-5²= -5* -5= 25

now we have... 25+2(1) - 7(-4)

now do 2*1= 2      also do   7 * (-4)= -28

now we have 25+2-(-28)

because there is that -(-28) just make it a +28

now do 25+2+28

27+28

55

1. 3. can also be expressed as (22/7)

2. -4.5

3. 3.6

happy to

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