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Naily [24]
3 years ago
10

What expression is equivalent to 2(x^2-1) + 3x(x-4)

Mathematics
1 answer:
wlad13 [49]3 years ago
3 0

Answer:

<h2>2(x^2 - 1) + 3x(x - 4) = 5x² - 12x - 2</h2>

Step-by-step explanation:

2(x^2-1)+3x(x-4)\qquad\text{use the distributive property:}\ a(b+c)=ab+ac\\\\=(2)(x^2)+(2)(-1)+(3x)(x)+(3x)(-4)\\\\=2x^2-2+3x^2-12x\qquad\text{combine like terms}\\\\=(2x^2+3x^2)-12x-2\\\\=5x^2-12x-2

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Choices:
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The additive inverse of the complex number a + bi is -(a+bi) = -a - bi

In this case, a = -8 and b = 3i

a + bi = -8 + 3i
additive inverse is:  -(-8+3i) = +8 - 3i

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</span>
5 0
4 years ago
Read 2 more answers
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Advocard [28]
Answers D. and E. are correct.
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7 0
3 years ago
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padilas [110]

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4 0
3 years ago
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Step-by-step explanation:

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3 years ago
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