Question

The area of a rectangle is given by A = x2 + 4x – 5. Find the value of x if the total area of the rectangle is equal to 7 square units.
a) x = 1
b) x = 2
c) x = 7
d) x = 5

Answer 1

x2 + 4x – 5 = 7
x2 + 4x – 12 = 0

x = 6,+2; id pick b: x=2

Answer 2

dbl chk:

4+8-5=7
12-5=7
7=7

Answer 3

SO its c'?

Answer 4

no.... x = 2; that was just me double checking to make sure

Answer 5

Oh okaye , sorry . thank you

Answer 6

Gnite :)