Question

(3х+1)(3х-1)=(х+2)^2+х(8х+1)​

Answer 1

Ответ:

Объяснение:

(3х+1)(3х-1)=(х+2)^2+х(8х+1)​

9x²-1=x²+4x+4+8x²+x

9x²-1-x²-4x-4-8x²-x=0

-5x=5

x= -1

Answer 2

Let's solve the equation step by step:

(3x + 1)(3x - 1) = (x + 2)^2 + x(8x + 1)

First, let's expand both sides of the equation:

(3x + 1)(3x - 1) = (x^2 + 4x + 4) + (8x^2)

Now, distribute on the left side:

(9x^2 - 1) = x^2 + 4x + 4 + 8x^2

Now, combine like terms on the right side:

9x^2 - 1 = 9x^2 + 4x + 4

Subtract 9x^2 from both sides to isolate the x term:

-1 = 4x + 4

Now, subtract 4 from both sides:

-1 - 4 = 4x

-5 = 4x

Finally, divide both sides by 4 to solve for x:

x = -5/4

So, the solution to the equation is x = -5/4.