Sorry if it's wrong, I tried
Answer:
fill the 5l bottle up completely
pour the contents of the 5l bottle into the 3l until completely full
this should leave you with 2 litres in the 5 l bottle
empty out the water in the 3 litre bottle and then pour in the 2 litres
fill the 5 litre up completely and you have 7 litres
Step-by-step explanation:
Answer:
1) x(x+7)
3) (x+5)*(x+4)
4) (x-6)*(x-8)
5) x(2x+21)+11
6) 5(a-5)*(a+5)
7) (4x+3)*(2x-3)
8) 4( x²-6xy+8)
Step-by-step explanation:
Let

be the length of the rectangle and

be the width. In the problem it is given that

. It is also given that the area

. Substituting in the length in terms of width, we have

. Using the zero product property,

. Solving these we get the width

. However, it doesn't make sense for the width to be negative, so the width must be

. From that we can tell the length

.