Question

if
$a = 3x {}^{2} - 2y {}^{2} - xy$
and
$b = - y {}^{2} + 3x {}^{2} + 2x {}^{2}$
find the expression resresenting 3B-2A​

Answer 1

Answer:

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Step-by-step explanation:

given, y≥2x+1 and 

y>21x−1

first, draw the graph for equations  y=2x+1 and y=21x−1

for y=2x+1 

substitute y=0 we get, 2x+1=0⟹x=−0.5

substitute x=0 we get, y=1

therefore, y=2x+1 line passes through (0.5,0) and (0,1) as shown in fig.

Hence,  y≥2x+1 includes the region above the line.

for y=21x−1 

substitute y=0 we get, 21x−1=0⟹x=2

substitute x=0 we get, y=−1

therefore, y=2x+1 line passes through (2,0) and (0,-1) as shown in fig.

Hence,  y>21x−1 includes the region above the line.

Answer 2

Answer:

2(8+0=43 788 92+77383 tex

Step-by-step explanation:

5+10