I'm extremely confused

x = 4, a = 15, b = 4

Step-by-step explanation:

Find the value of x:

P(triangle) = P(square)3(x + 4) = 4(x + 2)3x + 12 = 4x + 84x - 3x = 12 - 8x = 4

Find the value of a:

P(hexagon) = 12x6(1/2a + 1/2) = 12*43a + 3 = 483a = 45a = 15

Assumed b is the side of the rectangle (it is not indicated on the picture)

Find the value of b:

A(rectangle) = A(square)(x + 2)² = b(a - 6)(4 + 2)² = b(15 - 6)36 = 9bb = 4

We can solve/simplify the radical expressions by expressing them in simplest forms, so that there are no more square roots, cube roots etc left to find. We also have to make sure that no radical is left in the denominator.

For example:

Solving this we get;

=

=

= = 7.744

In this way radical expressions are solved.