Question

(x+3) (x-3)=
(a-1) (a+1)=
(b+2) (b-2)=
(5-y) (5+y) =
(m-n) (m+n) =
(p-q) (p+q) =
(3x+5y) (3x-5y)=​

Answer 1

Respuesta:

R1=

$x^{2} - 9$

R2

$a^{2} - 1$

R3

$b^{2} - 4$

R4

$25 - y^{2}$

R5

$m^{2} - n^{2}$

R6

$p^{2} -q^{2}$

R7

$9x^{2} -25y^{2}$