Question

(x + 7) - (x2 + 16x + 63)​

Answer 1

Answer:

$(x + 7) - ( {x}^{2} + 16x + 63) \\ x + 7 - {x}^{2} - 16x - 63 \\ - {x}^{2} - 15x - 56 \\ - 1( {x}^{2} + 15x + 56) \\ {x}^{2} + 15x + 56 \\ {x}^{2} + 7x + 8x + 56 \\ x(x + 7) + 8(x + 7) \\ (x + 7)(x + 8)$