Sagot :
A=(x-8)(x+8)
B=(7-3t)(7+3t)
[tex]a = x ^{2} - 8 ^{2} [/tex]
[tex]a = x ^{2} - 64[/tex]
[tex]b = 7 ^{2} - (3t)^{2} [/tex]
[tex]b = 49 - 9t^{2} [/tex]
A=(x-8)(x+8)
B=(7-3t)(7+3t)
[tex]a = x ^{2} - 8 ^{2} [/tex]
[tex]a = x ^{2} - 64[/tex]
[tex]b = 7 ^{2} - (3t)^{2} [/tex]
[tex]b = 49 - 9t^{2} [/tex]