Question

-n^2+7n+60 spillting the middle term

Answer 1

Step-by-step explanation:

$i \: let \: n = x \: u \: can \: take \: n \\ - {x}^{2} + 7x + 60 \\ - {x}^{2} + (12 - 5)x + 12 \times 5 \\ - {x}^{2} + 12x - 5x + 12 \times 5 \\ x( - x + 12) + 5( - x + 12) \\ (x + 5)(12 - x) \\ x = - 5 \\ x = 12$

Answer 2

Answer:

..............................