Question

(-5 + 11z)(5+11z)=

(7y z +7x)(-7yz+7x)=

(4.5x-2.7y)(4.5x+2.7y)=

(x^5 -13y^3)(x^5+13y^3)=

(-x^7-y)(-x^7+y)=

ayuda por favooooooorrrrrrrr

Answer 1

Respuesta:

$(-5 + 11z)(5+11z)= \\ (11z - 5)(11z + 5) = \\ {(11z) }^{2} - {(5)}^{2} = \\ 121 {z}^{2} - 25 \: \: respuesta </p><p> \\ </p><p>(7y z +7x)(-7yz+7x)= \\ (7x + 7yz)(7x - 7yz) \\ {(7x)}^{2} - {(7yz)}^{2} \\ 49 {x}^{2} - 49 {y}^{2} {z}^{2} \: respuesta.... \\ </p><p></p><p>(4.5x-2.7y)(4.5x+2.7y)= \\ {(4.5x)}^{2} - {(2.7y)}^{2} \\ 20.25 {x}^{2} - 7.29 {y}^{2} \: \: respuesta... \\ </p><p></p><p>(x^5 -13y^3)(x^5+13y^3)= \\ { ({x}^{5}) }^{2} - { ({13y}^{3}) }^{2} \\ {x}^{10} - 169 {y}^{6} \: respuesta.... \\ </p><p></p><p>(-x^7-y)(-x^7+y)= \\ {( { - x}^{7}) }^{2} - {(y)}^{2} \\ {x}^{14} - {y}^{2} \: respuesta.... \\ espero \: que \: te \: sirva....</p><p>$