Question

please tell me please tommorow is my exam and i have an dought about this plzzzzzz plzzzzz i have no tution in this corona time so plzzx tell​

Answer 1

Answer:4.-11/63

5.Look: (x + 3)2 = x2 + 6x + 9, and (x – 3)2 = x2 – 6x + 9! Here 9 can be written as (−3)2, so the middle term is 2(−3)x = −6x. So when the sign of the middle term is negative, the trinomial may be factored as (a – b)2.