Question

x2 -7x - 120 factorization ​

Answer 1

Answer:

${x}^{2} - 7x - 120 \\ {x}^{2} - 15x + 8x - 120 \\ x(x - 15) + 8(x - 15) \\ (x - 15)(x + 8)$

Answer 2

Answer:

x^2 - 7x - 120

x^2 - (15-8)x - 120

x^2 - 15x + 8x - 120

x(x-15) + 8(x-15)

(x-15)(x+8)

x= 15, -8