Explain how to expand (y-6). Then, give the answer.

Step-by-step explanation:

x

6

−

6

x

5

y

+

15

x

4

y

2

−

20

x

3

y

3

+

15

x

2

y

4

−

6

x

y

5

+

y

6

Explanation:

The coefficients of the expansion are given by the 6th row of Pascal's triangle, where the top row is row zero, the next is row one, etc.

a complex number is a number that can be expressed in the form a + bi, where a and b are real numbers, and i is a solution of the equation x2 = −1. because no real number satisfies this equation, i is called an imaginary number. has no real solution, since the square of a real number cannot be negative.