Question

Ayudaaaaa es urgente

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Answer 1

Respuesta:

$1) \: {(x + 8)}^{2} = {x}^{2} + 2(8x) + {8}^{2} = {x}^{2} + 16x + 64$

$2) \: {(x - 7)}^{2} = {x}^{2} - 2(7x) + {7}^{2} = {x}^{2} - 14x + 49$

$3) \: {(3x + 5)}^{2} = {(3x)}^{2} + 2(15x) + {5}^{2} = 9 {x}^{2} + 30x + 25$

$4) \: {(3 - x)}^{2} = {3}^{2} - 2(3x) + {x}^{2} = 9 - 6x + {x}^{2}$

$6) \: \: (x - 7)(x + 7) = {x}^{2} - {7}^{2} = {x}^{2} - 49$

$8) \: \: (3x - 4y)(3x - 4y) = {(3x)}^{2} - {(4y)}^{2} = 9 {x}^{2} - 16 {x}^{2}$