lilAntwon lilAntwon
  • 13-11-2020
  • Mathematics
contestada

Evaluate the following expression when X = -4 X to the power of 2 +2x-9

Respuesta :

nirvanafire11 nirvanafire11
  • 14-11-2020

Answer:

-1

Step-by-step explanation:

X = -4

so x^2+ 2x -9 = (-4)^2 + 2*(-4) - 9

= 16 - 8-9

= 8-9

= -1

Answer Link

Otras preguntas

Ammonia is a covalent compound used in many cleaners. What is its chemical formula? N2O H2O NH3 HO3
Is this HL, SSS, NOT CONGRUENT OR SAS
cual es la enceñanza del libro: alicia a travez del espejo de lewis caroll pliss
please help anyone 15 points
Are the triangles congruent? If so, name the postulate or theorem that justifies your statement. Given: AE || BD, AE = BD. ZE=2D Conclusion: ΔΑΕΒ ΔBDC
what kind of first aid should be given in frostbites ​
What is true of experimental designs that are used in scientific research? The designs use the same steps in every kind of research. The designs follow a genera
Three cubes, each of edge 2cm longare placed together as shown infigure. Find the surface area of thecuboid so formed.​
Plotline of Gift of Magi?
Why was Gandhi assassinated? a) For being to outspoken against the British. b) For speaking negatively of Muslims. c) For being tolerant and kind to Muslims.