Aidaolivo29 Aidaolivo29

09-09-2014
Mathematics

contestada

If x=2 and y=-3what is the value of 2x²-3xy-2y²

Respuesta :

mariamikayla mariamikayla

09-09-2014

[tex]2x^2-3xy-2y^2= 2*2^2-3*2*(-3)-2*(-3)^2 \\ \\ = 2*4+18-2*9= \\ \\ =8+18-18 \\ \\ =\boxed{8}[/tex]

Answer Link

Otras preguntas

As mammals get older their hearing gets...

In modern society, what do we mean when we refer to the division of labor? A. The ways construction jobs are organized B. The specialization of jobs in the med

Given the parent functions f(x) =log base 10 (x) and g(x)=3x-1, what is f(x) times g(x)?

At a factory that produces pistons for cars, Machine 1 produced 413 satisfactory pistons and 177 unsatisfactory pistons today. Machine 2 produced 350 satisfac

The length of a rectangle is five more than the width. The perimeter is 170. Find the length and width. Write equation and solve.

Is it true The rest of China other than its mountains is fertile and full of grasslands

Given the parent functions f(x) =log base 10 (x) and g(x)=3x-1, what is f(x) times g(x)?

carly just rented an apartment and she will need to sigh and date her lease which of the following is not a correct way for her to write out the date

Which of the following has a two-year term of office? U.S. Senate President House of Representatives Chief Justice

9x-8y=4 2x-3y=-4 Solving for elimination