samueldavis samueldavis
  • 22-01-2016
  • Mathematics
contestada

If x = -3, calculate the value of: 2x2 + x

Respuesta :

Billymkhoi
Billymkhoi Billymkhoi
  • 22-01-2016
At x=-3:

2x^2+ x
= 2(-3)^2+ (-3)
= 2*9 -3
= 18 -3
= 15

The value of 2x^2+ x is 15 if x=-3~
Answer Link

Otras preguntas

For 3 consecutive odd integers, the result of adding the smallest integer to four times the largest integer is 121. What are the 3 integer?
what is -6x-6+4x=-7x+6
How did early American authors use argumentative techniques to support their ideas?
Write a thoughtful response to this quote. “I've learned that people will forget what you said, people will forget what you did, but people will never forget h
Help me plzz i need help with this !!!!
Hot dogs come 10 to a package, and buns come 8 to a package. If an equal number of hot dogs and buns are wanted for a picnic, what is the minimum number of each
i need help with the reasoning part
NEED HELP ASAP!!! What is Lincoln saying in the first paragraph?
For (geosystems) When an earthquake occurs, ____ measures speed and intensity of seismic waves that vibrate underground.
Ms.Cody needs 1.75 yards of fabric to make one pillow. How many yards of fabric will she need to make 12 pillows? A) 12 yards B) 12 3/4 yards C) 21 yards D)