Answer:
The width is 3.5 and the length is 12
Explanation:
w(2w+5) = 42
w(2w + 5) - 42 = 0
+ 5w - 42 = 0
(2w -7)(w + 6) = 0
w + 6 = 0 Subtract 6 from both sides
w + 6 - 6 = 0 - 6
w = -6
The width cannot be a negative number
2w - 7 = 0 Add 7 to both sides
2w = 7 Divide both sides by 2
w = 3.5 The width is 3.5
Area = length times width
42 = l x 3.5 Divide both sides by 3.5
12 = length The length is 12
3.5 x 12 = 42 checks
The length is 2 times the width plus 5
12 = 2(3.5) + 5
12 = 12
Helping in the name of Jesus.