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csciahetano
26.11.2019 •
Mathematics
1. multiply (2x + 3)(x + 4)
2.multiply (3x + 5) (x - 8)
use ^ to indicate an exponent
3. 2. multiply: (4c - 9)(c2 + c - 7)
a. 4c3 + 63
b. 4c3 - 5c2 - 37c + 63
c. 4c3 + 4c2 - 28c
Solved
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Ответ:
Use foil- first (2x*x), outer (2x*4), inner (3*x), last (3*4):
2x^2 + 8x + 3x + 12
Add like terms:
2x^2 +11x + 12
2. (3x+5)(x-8)
Use foil:
3x^2 - 24x + 5x - 40
Add like terms:
3x^2 - 19x - 40
3. (4c-9)(c^2 +c -7)
Distribute 4c to each term of (c^2 +c -7):
4c^3 + 4c^2 -28c - hold on to this until the end.
Distribute -9 to each term of (c^2 + c -7):
-9c^2 - 9c + 63
Add results, combine like terms:
(4c^3 +4c^2 -28c) + (-9c^2 -9c +63)
B; 4c^3 -5c^2 -37c +63
Ответ:
Option 'B' is correct.
Step-by-step explanation:
Since we have given that
Rate FDIC charges Bank D per 100 dollars = 6.1 cents per 100 dollars
Amount he wants to insure = $7.3 million
Amount Bank D will pay is given by
Hence, Option 'B' is correct.