Neslepe0rsm
Neslepe0rsm Neslepe0rsm
  • 03-09-2016
  • Mathematics
contestada

what is the value of the expression 2x2 3xy – 4y2when x = 2 and y = –4? a. –80 b. –32 c. 32 d. 80

Respuesta :

nobillionaireNobley
nobillionaireNobley nobillionaireNobley
  • 05-09-2016
2x^2 + 3xy - 4y^2 when x = 2 and y = -4
= 2(2)^2 + 3(2)(-4) - 4(-4)^2 = 2(4) + (-24) - 4(16) = 8 - 24 - 64 = -80
Answer Link

Otras preguntas

Simplify 3-3(5y+7)+(2y-6)
What is the population of Quito?less than 500,000about 850,000over 1 million3 million?
Geometry math question no Guessing and Please show work
How many liters of oxygen at 0 ∘c and 760 mmhg (stp) are required to completely react with 4.2 g of aluminum?
In FGH, what is the measure of H? A. 42 B. 43 C. 68 D.69
Evaluate 7C3. 35 210 21 105 IF you are the first to see this answer it the right way please and i will mark you brainliest
how to write five million, forty thousand
Find the sum of the first seven terms of the sequence 4, 12, 36, 108, … . a. 1,456B.1,457C.4,372D.4,374
1. round 24,061,562 to the nearest 1,000 and 100,000
Geometry math question no Guessing and Please show work thank you