Question

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doy corona

Answer 1

Explicación paso a paso:

Calculamos la primera ecuación:

9ˣ + 100ˣ = 2(30)ˣ

9ˣ + 100ˣ - 2 × 30ˣ = 0

3²ˣ + 10²ˣ - 2 × (3 × 10)ˣ = 0

3²ˣ + 10²ˣ - 2 × 3ˣ × 10ˣ = 0

(3/10)²ˣ + 1 - 2 × (3/10)ˣ = 0

((3/10)ˣ)² + 1 - 2 × (3/10)ˣ = 0

t² + 1 - 2t = 0

t = 1

(3/10)ˣ = 1

x = 0

Ahora calculamos el problema:

A = (x - 3)⁽ˣ ⁻ ²⁾⁽ˣ ⁻ ¹⁾

A = (0 - 3)⁽⁰ ⁻ ²⁾⁽⁰ ⁻ ¹⁾

A = (-3)⁻²⁽⁰ ⁻ ¹⁾

A = (-3)⁻² * ⁽⁻¹⁾

A = (-3)²

A = 9

Solución: Es la e) 9

Besitos OvO