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Yuki888 [10]
3 years ago
11

5n+6+(−7n) answer olz

Mathematics
1 answer:
mr Goodwill [35]3 years ago
6 0

Answer:

-2n + 6

Step-by-step explanation:

When we simplify the equation, we add like terms. 5n - 7n is 2n and 6 doesn't have anything to add/subtract to, so we have -2n + 6

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Answer:

Step-by-step explanation:

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          = x*(-5x²) + x*2x + x*7 - 5x² + 2x + 7

        = -5x³ + 2x² + 7x - 5x² + 2x + 7

        = - 5x³ + <u>2x² -5x²</u>   <u>+ 7x + 2x </u>+7   {Combine like terms}

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                = x*(x² + 2x + 4) - 2*(x² + 2x + 4)

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2) Speed=\dfrac{distance}{time}\\\\\\= \dfrac{d(h)}{t(h)}\\\\= \dfrac{2\sqrt{h}}{3\sqrt{4h}}=\dfrac{2*\sqrt{h}}{3*2\sqrt{h}}\\\\\\=\dfrac{1}{3}

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jasenka [17]

Answer:

The polynomial is:

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Step-by-step explanation:

A third degree polynomial can be written in function of it's zeros x_1, x_2, x_3 the following way:

p(x) = a(x - x_1)(x - x_2)(x - x_3)

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Integer coefficient that have zeros: 1+2i, 1-2i, -4

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