Question

Desarrolla las siguientes expresiones algebraicas

( x + 9) ( x – 9)

(2x + 5 ) (2x – 5)

( x – 6)²

(3x + 2)²


ayúdenme porfi​

Answer 1

( x + 9) ( x – 9)

x²-9x+9x-81

x²-81

(2x + 5 ) (2x – 5)

4x²-10x+10x-25

4x²-25

( x – 6)²

x²-12x+36

(3x + 2)²

9x²+12x+4

Answer 2

Explicación paso a paso:

( x + 9) ( x – 9)= x²-9²= x²-81

(2x + 5 ) (2x – 5)= 2x²-5²= 2x²-25

( x – 6)²= x²-2(x)(6)+6²= x²-12x+36

(3x + 2)²= (3x)²+2(3x)(2)+2²= 9x²+12x+4