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Zinaida [17]
2 years ago
15

Multiply (2x + 4)(2x - 4)

Mathematics
2 answers:
lakkis [162]2 years ago
8 0

Answer:

4x^2 -16

Step-by-step explanation:

(2x + 4)(2x - 4)

FOIL

first:2x*2x = 4x^2

outer: -4 *2x = -8x

inner:  4*2x = 8x

last: -4*4 = -16

Add them together

4x^2 -8x+8x =-16

4x^2 -16

77julia77 [94]2 years ago
7 0

Answer:

4x^2 - 16

Think Difference of squares. It is just a reverse method of that.

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4^(12-4x)=256  realize that 256 is 4^4  so we really have:

4^(12-4x)=4^4  taking the natural log of both sides

(12-4x)ln4=4ln4  dividing both sides by ln4

12-4x=4  subtract 12 from both sides

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3 years ago
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Step-by-step explanation:

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