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2 years ago

Find the number of roots for the following equation. 9x5 + 12x4 – x2 + 8x + 4=0

Mathematics

1 answer:

skad [1K]2 years ago

8 0

Answer:

5 roots

Step-by-step explanation:

Given

$9x^5 + 12x^4 - x^2 + 8x + 4 = 0$

Required

The number of roots

The degree of a polynomial represents the number of roots.

In the given equation, the degree of the polynomial is 5.

<em>Hence, the number of roots is 5</em>

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2 years ago

A circle has a circumference of 28.26cm. what is the area of the circle? show work please

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3 years ago

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Answer:

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Step-by-step explanation:

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3 years ago

Solve and graph the following inequality: 3(7x+17) > -19 + 14x

love history [14]

Answer:

Solving the inequality we get: $\mathbf{x>-7}$

Step-by-step explanation:

We need to solve and graph the inequality $3(7x+17) > -19 + 14x$

Solving:

$3(7x+17) > -19 + 14x$

Step 1: Multiply 3 with terms inside the bracket

$21x+51 > -19 + 14x$

Step 2:Subtracting 51 on both sides

$21x+51-51 > -19 + 14x-51\\21x>14x-70\\$

Step 3: Subtract 14x on both sides

$21x-14x>+14x-70-14x\\7x>-70$

Step 4: Divide both sides by 7

$\frac{7x}{7}>\frac{-70}{7}\\x>-10$

Solving the inequality we get: $\mathbf{x>-7}$

The graph is attached in the figure below.

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Step-by-step explanation:

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2 years ago

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Find the number of roots for the following equation. 9x5 + 12x4 – x2 + 8x + 4=0​

Find the number of roots for the following equation. 9x5 + 12x4 – x2 + 8x + 4=0