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

What is the Ratio of 18:24, 4:70, 35:105, 22:7, 12:165, In fractions in their Simplest form?
how can you place value and period names to read and write 12,324,904 in word form?
Complete these Analogies . 1. Eighteen: even:: thirty-three:
give an example of a rational function whose graph has two vertical asymptotes, x=2 amd x=3. two x-intercepts, 0 and -3, and one horizontal asymptote, y=2
What were three major innovations that came out of the ww1 experience?
the belief that the will of most of the people will be just more often than it will be unjust is called___? A) Compromise B) Autocracy C) Minority rule D) Major
What is the speed of light
solve for x m<AOB =4x-2,m<BOC=5x+10,m<COD=2x+14
Write the greatest whole number that uses all the digits from 1 to 9.
What is the simplified form of the expression -2(-5x-8) ?