1820 square feet
68 + 28x - 28 = 236 28x + 68 - 68 -28 + 28 = 236 - 68 + 28 28x = 196 x = 7
That depends on the - or + values of 28x and 980 which have not been given
32
49x2+28x+4 = (7x+2)(7x+2) when factored
In order to solve this equation you need to know what -28x-2 equals. If you were to assume it was 0 then x = 0.071 rounded
what is -12X squared +28X - 15? i figured it out myself. its (-6X + 5)(2X - 3).
The GCF is 4x.
The sum is 28x
Suppose the total length was 1+x minutes.Then cost = 55 + 28x = 727So 28x = 272, therefore x= 24.So the call length was 25 minutes.Suppose the total length was 1+x minutes.Then cost = 55 + 28x = 727So 28x = 272, therefore x= 24.So the call length was 25 minutes.Suppose the total length was 1+x minutes.Then cost = 55 + 28x = 727So 28x = 272, therefore x= 24.So the call length was 25 minutes.Suppose the total length was 1+x minutes.Then cost = 55 + 28x = 727So 28x = 272, therefore x= 24.So the call length was 25 minutes.
4x2+28x+49 = (2x+7)(2x+7) when factored
7x+7=28x 28x-7x=7 21x=7 x=3