Question

Ayuden a resolver :(

Answer 1

Explicación paso a paso:

At = 122

Ay = A1 - A2

A1 = (3x + 2) * (3x - 2)

A1 =

$9 {x}^{2} - 4$

A2 = (2x + 1) * (2x - 1)

A2 =

$4 {x}^{2} - 1$

122 = 9x^2 - 4 - (4x^2 - 1)

122 = 9x^2 - 4 - 4x^2 + 1

122 = 5x^2 - 3

125 = 5x^2

$x = \sqrt{125 \div 5}$

x = 5

Answer 2

Respuesta:

At = 122

Ay = A1 - A2

A1 = (3x + 2) * (3x - 2)

A1 =

9 {x}^{2} - 49x

2

−4

A2 = (2x + 1) * (2x - 1)

A2 =

4 {x}^{2} - 14x

2

−1

122 = 9x^2 - 4 - (4x^2 - 1)

122 = 9x^2 - 4 - 4x^2 + 1

122 = 5x^2 - 3

125 = 5x^2

x = \sqrt{125 \div 5}x=

125÷5

x = 5. listo espero aber ayudado