Question

The factors of x²-x-42 are​

Answer 1

${x}^{2} - 7x + 6x - 42 \\ = x(x - 7) + 6(x - 7) \\ = (x - 7)(x + 6)$

Answer 2

Step-by-step explanation:

${x}^{2} - x - 42$

${x}^{2} - (7 - 6)x - 7 \times 6$

${x}^{2} - 7x + 6x - 7 \times 6$

$x(x - 7) + 6(x - 7)$

$(x - 7)(x + 6)$