mayakendal mayakendal

16-07-2021
SAT

contestada

What is the value of the expression
x² + 2x - 2xy – 2y + y^2 when x - y = 50 ?

Respuesta :

LammettHash LammettHash

17-07-2021

x ² + 2x - 2xy - 2y + y ² = (x ² - 2xy + y ²) + 2 (x - y)

… = (x - y)² + 2 (x - y)

… = 50² + 2 × 50

… = 2600

Answer Link

Otras preguntas

Suppose you have a choice between studying one more hour for your history exam or studying one more hour for your psychology exam. your decision on what to stud

Red flowers are dominant over white flowers in roses. a heterozygous red flowering rose is mated with a purebred, white colored rose. what percentage of their o

The american diabetes association recommends a postprandial blood glucose level of ________ mg/dl for adults with diabetes.

Which patient would the emt classify as having a psychiatric (behavioral) emergency?

Today's consumers are increasingly getting information from one another rather than from the original source. this new communication landscape is referred to as

what is the magna carta, and what features explain its historical significance?

Solve for x: 1/7 (x - 3) - 2 = 9 A. x = 74 and x = 80 B. x = -46 and x =52 C. x = -52 and x = 46 D. x= -74 and x = 80

True or false? the point estimate for the population mean of an x distribution is x bar, computed from a random sample of the x distribution.

Excited electrons have energy than non-excited electrons. Electrons in the photosystems of plants are excited by?

A patient prescribed to receive two units of packed red blood cells is to receive a dose of intravenous medication between the two units. how would the nurse ad