Question

Factorizar la pregunta de la foto​

Answer 1

• Forma 1:

$x\²-8x+7=0$

$x\²-7x-x+7=0$

$x(x-7)-(x-7)=0$

$(x-1)(x-7)=0$

• Forma 2:

$x\²-8x+7=0$

$x\²-8x+16-9=0$

$(x-4)\²-3\²=0$

$(x-4+3)(x-4-3)=0$

$(x-1)(x-7)=0$