Question

Please help soon!! Write the expansion of each expression using sigma notation.

Answer 1

Answer:

A. sigma 24 r=0 (24, r) (5m)^24-r (-6n)^r

Step-by-step explanation:

This is called Binomial Theorem (p. 632 in pre-calculus textbook)

Instead of using nCr, the replace it with ()

The expression is (5m-6n)^24

We can take out the parts

a = 5m

b = -6n

n = 24

and substitute it into the equation shown

Answer 2

Answer:

$(5m-6n)^{24}$ ⇒ 1st answer

$(-5m-7n)^{19}$  ⇒ 4th answer

Step-by-step explanation:

Look to the attached file

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