jamesbranson83pangwz jamesbranson83pangwz

21-06-2018
Mathematics

contestada

what is the value of the expression 2x2+3xy-y2, when x=2 And y=-4

Respuesta :

AnimeBrainly AnimeBrainly

21-06-2018

Plug in 2 for x, and -4 for y

2(2)² + 3(2)(-4) - (-4)²

2² = 4(2) = 8
3(2) = 6(-4) = -24
-4² = 16

8 - 24 - 16 = answer

Simplify.

answer = 8 - 40
answer = -32

-32 is your answer

hope this helps

Answer Link

Otras preguntas

How many new states could the United States add via the Louisiana Purchase? A. 11 B. 14 C. 12 D. 13

Would the fact that the claim used to justify 'Knowledge is not possible' is unjustified, make 'Knowledge is not possible' unjustified?Whilst researching philos

Do you need a pen choose the best Spanish translation

Chargaff's second rule states that the proportion of adenine and guanine differs between different species of organisms. A. False B. True

What is the difference between a Health Claim, Nutrient Claim, and Structure Function Claim?

Which of the following factors is NOT included in the calculation of the Framingham risk score for coronary artery disease?A) AgeB) GenderC) Blood pressureD) Bo

Which of the following relationships proves why acd and ecb are congruent HL,aas,asa,sas

I'm trying to show that delta f(x) = sum_i frac delta(x-a_i) left| fracdfdx(a_i) right|? Where a_i are the roots of the function f(x). I've tried to proceed by

Traditionally, the whole body TEDE regulatory limit is ____________ Sv For occupational he exposed and _____________ Sv For general public

For good performance, Maximum Java Heap Size should be: