👤

find all integers k for which x²+kx+48

help po plsss ​


Sagot :

Answer:

k∈{−15,−9,9,15}

Explanation:

In order to factorise this quadratic with integers we would require factors of

14

that add up to

k

. We can just list these:

factor1

factor2

sum

factored quadratic

14115

(×+14)(x+1)729(x+7)(x+2)-14−1−15

(x−14)(x−1(−7−2−9(x−7)(x−2)

So the values are

k∈{−15,−9,9,15}

Step-by-step explanation:

Alamin mo factors ni 48 tas add mo lang yung mga yun example: 48 x 1, kapag pinag add mo sila 49 bali yun yung value ni k. Ganun lang, wag mo rin kalimutan negative values. Example -48 x -1 bali si k= - 49. Ganyan.. So list down all the factors, tas add.