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kvasek [131]
3 years ago
9

In functions, what does (x+2)(x-4) equate to? ​

Mathematics
1 answer:
dimaraw [331]3 years ago
6 0

Answer:

f(x) = x^2 -2x -8

Step-by-step explanation:

(x+2)(x-4)

FOIL

first: x*x = x^2

outer: -4x

inner: 2x

last: 2*-4x = -8

Add together

x^2 +2x-4x-8

x^2 -2x -8

This is a parabola

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If a celebrity charges $0.125 million for a 5 second commercial, how much will he be paid for a 45-second appearance?
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Ab = 13 + 2x bc = 12 ac = x + 32<br><br> what does X and AB, BC, and AC equal?
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2 years ago
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What is the sum of each pair of binary integers?
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Example:  < means carry, decimal equivalent for checking
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+   1     1     1     1         (8+4+2+1=15)
---<---<----<----<----
1   1     0     1     0         (16+8+2=26)

Proceeding similarly,
a. 10101111+11011011 = 110001010  (394)
b. 10010111+11111111  = 110010110  (406)
c.  01110101+10101100 = 10010001  (289)

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3 years ago
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