amyschiller1996 amyschiller1996
  • 19-07-2021
  • Mathematics
contestada

Evaluate 2w^2-3w+7 when w=-2

Respuesta :

rbasat rbasat
  • 19-07-2021
2w^2 - 3w + 7
2(-2)^2 - 3(-2) + 7
2(4) + 6 + 7
8 + 6 + 7
14 + 7
21

The answer is 21.
Answer Link
Amphitrite1040
Amphitrite1040 Amphitrite1040
  • 19-07-2021

Hey there!

2w^2 - 3w + 7

= 2(-2)^2 - 3(-2) + 7

(-2)^2

= (-2)(-2)

= 4

= 2(4) - 3(-2) + 7

2(4) = 8

3(-2) = -6

= 8 - (-6) + 7

= 8 + 6 + 7

8 + 6 = 14

14 + 7

= 21

Answer: 21

Good luck on your assignment and enjoy your day!

~Amphitrite1040:)

Answer Link

Otras preguntas

How do you estimate 3/4 - 1/8?  How much of 3/4 is left?
Iron in the form of fine wire burns in oxygen to form iron (III) oxide. Write the balanced chemical equation.
Who established a school in Portugal to help sea captains get better at navigation
what is 12/21 reduced to
Which value of x is in the solution set of 4/3x +5 < 17?would the answer be 8 or 9?
5x+10=24-2x what is this called?
Christy drove 270 miles in 6 hours at a constant speed how long would it take her to drive 405 miles at the same speed ?
what brought the greek people together after centuries of fighting over land and trade?
A rectangle with dimensions of 3 units by 5 units is enlarged by a scale factor of 1.4 By what percent does its area increase?
A piece of plywood 24 inches wide is cut into strips 2 1/2 inches wide. How many strips of this width can be cut?