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Hey.

I am having difficultly with two math problems:

1. In the expansion of (mx+n)^5 the numerical coefficient of the second term is -48 and of the third term if 28.8 Find the values of m and n.

2. The first three terms in the expansion of (1+a)^n are 1-18+144. Determine the values of a and n

Could someone please explain to me how to do these? Thanks.

I am having difficultly with two math problems:

1. In the expansion of (mx+n)^5 the numerical coefficient of the second term is -48 and of the third term if 28.8 Find the values of m and n.

2. The first three terms in the expansion of (1+a)^n are 1-18+144. Determine the values of a and n

Could someone please explain to me how to do these? Thanks.

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