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2 years ago

Simplify the following polynomial expression.

Mathematics

1 answer:

victus00 [196]2 years ago

7 0

Answer:

5x^4 -37x^3 -6x^2 +41x -6

Step-by-step explanation:

We simplify this expression by removing parentheses and combining like terms. Parentheses are removed using the distributive property.

<h3>Form the product</h3>

The product of the final pair of polynomials in parentheses is ...

(-4x^3 +5x -1)(2x -7) = (-4x^3 +5x -1)(2x) +(-4x^3 +5x -1)(-7)

= -8x^4 +10x^2 -2x +28x^3 -35x +7

= -8x^4 +28x^3 +10x^2 -37x +7

<h3>Combine with remaining sums</h3>

= (5x^4 -9x^3 +7x -1) + (-8x^4 +4x^2 -3x +2) - (-8x^4 +28x^3 +10x^2 -37x +7)

= (5 -8 -(-8))x^4 +(-9 -28)x^3 +(4 -10)x^2 +(7 -3 -(-37))x +(-1 +2 -7)

= 5x^4 -37x^3 -6x^2 +41x -6

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Last question please help me

Inessa [10]

Answer: OPTION D

Step-by-step explanation:

The formula for calculate the surface area of a rectangular prism is:

$SA_{rp}=2(wh+lw+lh)$

Where w is the width, h is the height and l is the length.

You can see in the figure attached that:

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3 years ago

Which side lengths form a right triangle? Choose all answers that apply: Choose all answers that apply: (Choice A) A 3, 6, \sqrt

dlinn [17]

Answer:

A, B and C

Step-by-step explanation:

Given any three side lengths of a right triangle, the longest side is the hypotenuse.

The side lengths of a right triangle must satisfy the <u>Pythagorean Theorem. </u>

Pythagorean Theorem: $Hypotenuse^2=Opposite^2+Adjacent^2$

<u>Option A:</u> $3, 6, \sqrt{45}$

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True

<u>Option B:</u> 2.5, 6, 6.5

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<u>Option C:</u> $4, 8, \sqrt{80}$

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3 years ago

Does anyone know how to do this?

Strike441 [17]

Answer:

$196 m^{2}$

Step-by-step explanation:

A square is a <u>shape that which all sides are equal</u>

<em>14 is one side of the square and to find the area of a square/rectangle, you do </em><u><em>length*width </em></u>

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Answer:

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Step-by-step explanation:

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Raise 3 to the power of 4

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please mark me brainliest!

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Step-by-step explanation:

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