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4 years ago

PLEASE HELP ITS URGENT

Mathematics

1 answer:

tatyana61 [14]4 years ago

3 0

Hello from MrBillDoesMath!

Answer:

#1. Choice a, m = -3

#2 Choice b, 292+13m

Discussion:

#1:

(mx+8) (2x-4) = 2 m x^2 - 4 m x + 16 x - 32

= m(2x^2) + x( -4m+16) -32

If this expressions equals

= -6x^2 + 28x - 32

then 2m = -6 and -4m+16 = 28, which gives m = -3. That is Choice A.

Choice b:

a(n) = 292 + 13n , n > = 1

a(1) = 292 + 13(1) = 305

a(2) = 292 + 13(2) = 292 + 26 = 318

a(3) = 292 + 13(3) = 292 + 39 = 331

a(4) = 292 + 4(13) = 292 + 52 = 344

The sequence a(n) values match those given in the Question.

Thank you,

MrB

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