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Popular >

x^2-1=(x+1)^2-3x

Solution

x^{2} - 1 = (x + 1)^{2} - 3 x

Solution

x = 2

Solution steps

x^{2} - 1 = (x + 1)^{2} - 3 x

Expand

(x + 1)^{2} - 3 x : x^{2} - x + 1

x^{2} - 1 = x^{2} - x + 1

Move

1

to the right side

x^{2} = x^{2} - x + 2

Subtract

x^{2} - x

from both sides

x^{2} - (x^{2} - x) = x^{2} - x + 2 - (x^{2} - x)

Simplify

x = 2

Popular Examples

0.3x-0.4=0.2x+6

0.3 x - 0.4 = 0.2 x + 6

5 x + 4 - 2 x = - (x + 8)

3 x + 4 = 5 x - 16

solvefor T,T(x)=(2x^3-1)^5(5-3x)^4 solve for

T, T (x) = (2 x^{3} - 1)^{5} (5 - 3 x)^{4}

solvefor x,4x+y=18 solve for

x, 4 x + y = 18

Frequently Asked Questions (FAQ)

What is the answer to x^2-1=(x+1)^2-3x ?
The answer to x^2-1=(x+1)^2-3x is x=2
Solve for x: x^2-1=(x+1)^2-3x
The solution is x=2