Ejercicio 10

3a

2 +5b

A + 10b

3

= 10b + 3a

5b

3a+10b

3

= 3 <resultado

5 b

a-x+

11. __________ =

a2-

______________ =

=

12.-

14. 20x₂ + 7x – 6

x

4/x₂ - 25

(4x+3) (5x-2)

= x

4 - 25x₂

x₂

= x (4x+3) (5x-2)

(2+5x) (2-5x)

= - 4x₂ + 3x

5x+2

15.-

1 + 1

X – 1

1+ 1

X2 -1 = x(x+1) = x+1 <resultado

X2 x

=x -1+1

x-1

x2 -1+1

x2 -1

16. a – ab/a + b = a₂ + ab – ab

ab a + b

a₂ - ab + ab

a+ a - b

a - b

= a₂ (a – b) = a - b

a₂ (a + b) a + b

17.-

18.-