When X takes the value of the epoch 2X 5, it is equal to the value of the root number x 10

2x+5=root x+10

Both sides are squared.

2x+5）^2=x+10

4x^2+20x+25=x+10

4x^2+19x+15=0

x+1)(4x+15)=0

x=-1/ x=-15/4

When x=-1, left=3, right=3 is the root of the original equation because left=right.

When x=-15 4, left ≠ right so to add roots.

So the root of the original equation is x=-1

2x+5 = root number (x+10) When 2x+5 >=0 i.e. x>=-5 2, both sides are squared.

4x²+20x+25=x+10

4x²+19x+15=0

19²-4x4x15=121

x=(-19±11)/8

x1=(-19+11)/8=-1

x2=(-19-11) 8=-15 4 Because <-5 2 is rounded.

2x+5=root x+10

2x-5 = root number x when 2x+5 >=0 i.e. x>=-5 2, both sides are squared.

4x²-20x+25=x

4x²-21x+25=0

21²-4x4x25=41

x=(-19±√41)/8

x1=(-19+√41)/8

x2=(-19- 41) 8 because <-5 2 is rounded.

2x+5=root x+10

Both sides are squared.

2x+5）^2=x+10

4x^2+20x+25=x+10

4x^2+19x+15=0

x+1)(4x+15)=0

So x=-1 or x=-15 4

Root No. 2 Root No. 2-1

Root number 2 (root number 2 + 1) Square of root number 2 + 1 2

2 + root number 2

i.e. x+1 = root number 2013

Square guess cherry blossoms on both sides.

x Pingdan Zhao Pao Fang + 2x + 1 = 2013

On both sides add the mold Chang on 1

x square + 2x + 2 = 2014

x=2-root number 10, so (x-2) 2=10, so x 2-4x+4=10, so x 2-4x=6

then the value of the algebraic equation x2-4x-6 is 0

√(x+2)=x

The square of both sides gives x+2=x

x²-x-2=0

x+1)(x-2)=0

x=-1 or x=2

When x=-1, it is not suitable to discard.

So, x=2

The square of both sides is x+2=x square, and you will know x=2 at a glance.

If the algebraic root number (x+2) is meaningful, then the range of x is x -2

Because it makes sense for a quadratic radical to be squared greater than or equal to 0, x+2 0, i.e., x -2.

If the question is the root number x-2, then the answer is x 2