-3x 2 + 2y 2 + 5xy - 2y + 5x 2 - 3y 2 if x=2 and y=-1

Question

19-01-2018
Mathematics

contestada

-3x 2 + 2y 2 + 5xy - 2y + 5x 2 - 3y 2 if x=2 and y=-1

Respuesta :

Otras preguntas

The parallelogram shown represents a map of the boundaries of a natural preserve. Walking trails run from points A to C and from points B to D. The measurements

What is the ratio of 11% out of 3,000 students?

Can you put this in order from smallest to largest? the list is: chromosome, gene, organ system, tissue, organism, organ, nucleus, nucleotide base pair, cell.

The some of five different single digit whole numbers is 30. Two of the numbers are one and eight if we multiply the same five numbers the product is 2520. Wha

What did the Mayas develop? a. intricate roads to connect different parts of their empire b. stone carvings that showed images of their rulers c. a calendar

In the plot of a story, most of the events result from a central conflict that leads to the , or conclusion.

Why might countries with command economies have high rates of employment?

During the Clinton administration, the U.S. took part in United Nations-sanctioned bombing of which two nations?

Friend in 4th needs help Only 23 and 25

obenam obenam · Answer 1 · 2018-01-19T16:11:42+01:00

obenam obenam

19-01-2018

if [tex]x=2,y=1[/tex] the formula becomes:
[tex]-3(2)^2 + 2\times1^2 + 5(2) - 2 + 5(2)^2 - 3\times1^ 2\\=(-12+2)+(10-2)+(20-3)\\=(-10+8)+17\\=-2+17\\=15[/tex]

Answer Link