Question

Porfa solo la respuesta

Answer 1

Respuesta:

23.

$2x^{a+5} y^{a-7}$

a + 5 + a - 7 = 22

2a - 2 = 22

2a = 24

a = 12

Halla a²

(12)² = 144

24.

$5x^{a+3}$

a + 3 = 12

a = 9

Nos piden la suma de coeficientes...

a + (a-2) + 5

9 + (9-2) + 5

9 + 7 + 5

21

25.

$8m^{4}n^{x}$

4 + x = 7

x = 3

26.

$6a^{x+3}b^{2}$

x + 3 + 2 = 9

x + 5 = 9

x = 4

27.

$3a^{1}b^{x+2}c^{4}$

1 + x + 2 + 4 = 8

x + 7 = 8

x = 1

28.

$5a^{2}b^{x}$

2 + x = 5

x = 3