Question

my watch losses 2 minute every day how many seconds does it loose in 1 hours

Answer 1

Answer:

Your answer is like this

Step-by-step explanation:

kab+2a²-b²=(a-b)(2a+b),

kab+2a²-b²=2a²+ab-2ab-b²,

kab=-ab,

then

k = -ab/ab,

k=-1

Hence the valuea of k = -1

Answer 2

hours. seconds lost
24. 120
1. X
by cross multiplication
24x = 120x1
x = 5second