Without using Pascal’s Triangle

Question Answer
Use the combination formula to expand each binomial, use example 2 for additional help.
(x+y)?
x? + 7x?y + 21x?y? + 35x?y? + 35x?y? + 21x?y? + 7xy? + y?
Use the combination formula to expand each binomial, use example 2 for additional help.
(x-5y)?
x? + 40x?y + 700x?y? + 7,000x?y? + 43,750x?y? + 175,000x?y? + 437,500x?y? + 625,000xy? + 390,625
Use the combination formula to expand each binomial, use example 2 for additional help.
(2x+3y)?
16x? + 96x?y + 216x?y? + 216xy? + 81y?
Use the combination formula to expand each binomial, use example 2 for additional help.
(x?-2y)?
x? + 6x?y + 12x?y? + 8y?
Use the combination formula to expand each binomial, use example 2 for additional help.
(3x+y)?
3x? + 6xy + y?

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