A rectangle has a length of 6 inches and a width of 8 inches. A square with a side length of 3 was cut out of it. What is the area of the remaining paper

39 inch²

Step-by-step explanation:

The rectangle's area was:

= Length * Width

= 6 * 8

= 48 inches²

The square's area is:

= Length * width

= 3 * 3

= 9 inches²

The square was cut out of the rectangle which means the area of the square should be deducted from the rectangle to find out the remaining area.

= 48 - 9

= 39 inch²

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.