Using Pascal’s Triangle

Use Pascal's Triangle to expand each binomial, refer to example 1 for additional help.
(a+b)?
a? + 3a?b +3ab? + b?
Use Pascal's Triangle to expand each binomial, refer to example 1 for additional help.
(x-y)?

x? – 2xy + y?
Use Pascal's Triangle to expand each binomial, refer to example 1 for additional help.
(a-b)?
a? – 6a?b + 15a?b? – 20a?b? + 15a?b? – 6ab? + b?
Use Pascal's Triangle to expand each binomial, refer to example 1 for additional help.
(d+e)?
d? – 9d?e + 36d?e? – 84d?e? +126d?e? – 126d?e? + 84d?e? – 36d?e? + 9de?- e?
Use Pascal's Triangle to expand each binomial, refer to example 1 for additional help.
(a+3b)?
a? + 12a?b + 18a?b? + 12ab? + b?
Use Pascal's Triangle to expand each binomial, refer to example 1 for additional help.
(x-y)?
x? – 7x?y + 21x?y? – 35x?y? + 35x?y? – 21x?y? + 7xy? – y?
Use Pascal's Triangle to expand each binomial, refer to example 1 for additional help.
(x-3)?
x? + 9x? + 9x + 27
Use Pascal's Triangle to expand each binomial, refer to example 1 for additional help.
(x+y) ?
x? + x?y + x?y? + x?y? + x?y? + x?y? + x?y? + xy? + x?
Use Pascal's Triangle to expand each binomial, refer to example 1 for additional help.
(x-4)?
x? + 32x? + 448x? +3,584x? +17,920x? +57,344x? +114,688x? + 131,072x +65,536
Use Pascal's Triangle to expand each binomial, refer to example 1 for additional help.
(x-y)?
x? – x?y + x?y? – x?y? + xy? – y?