Question

please
solve this problem
solve the equation
1)- √2-x+3=x-7
2)- √4y+1=3√x
3)- √2x+√x+7-1
4)- √x-2+√x-13=11 ​

Answer 1

Answer:

Q1

If : △

1

∣

∣

∣

∣

∣

∣

∣

∣

−

7

5

4

x

x+1

x

2

3

7

∣

∣

∣

∣

∣

∣

∣

∣

△

2

=

⎣

⎢

⎢

⎢

⎢

⎢

x

x+1

x

2

3

7

7

−5

4

⎦

⎥

⎥

⎥

⎥

⎥

then △

1

−△

2

=0 for

Q2

If

∣

∣

∣

∣

∣

∣

∣

∣

1+x

1

1

2

2+x

2

3

3

3+x

∣

∣

∣

∣

∣

∣

∣

∣

=0 then x=

Q3

Solve:

x−1

1

+

x−2

2

=

x−3

3

Q4

The median of the variables x−

2

7

,x−3,x−

2

5

,x−2,−

2

1

x+

2

1

,x+4,x+5 is

Q5

Evaluate:

1. lim

x→2

x

4

−8x

2

+16

x

3

−3x

2

+4

2. lim

x→1

[

1−x

2

2

+

x−1

1

]

3. lim

x→−3

[

x

2

+4x+3

1

+

x

2

+8x+15

1