Which of the following shows how the number 7 can be rewritten with the difference of squares identity?
(16 - 9) = (4 + 3)(4 - 3)
(18 - 11) = (9 + 6)(9 - 5)
(25 - 4) = (5 + 2)(5 - 2)
(16 - 9) = -1(4 + 3)(4 - 3)
(64 - 1) = (8 + 1)(8 - 1)

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.

the answer will be

maybe showing the graph would

step-by-step explanation:

-387129 iq

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have