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marta [7]
3 years ago
12

Solve each quadratic equation. a) 2(x + 5) (2x - 3) = 0

Mathematics
1 answer:
damaskus [11]3 years ago
8 0

Answer:

{4x}^{2}  + 14x - 30 \\

Step-by-step explanation:

2(x + 5)(2x - 3)\\ (2x + 10)(2x - 3)\\ 2x(2x - 3) + 10(2x - 3)\\ 4 {x}^{2}  - 6x + 20x - 30\\  {4x}^{2}  + 14x - 30\\

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The answer is 15
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Is the term (x+1) a factor of the polynomial shown below? <br> f(x)=x^3-10x^2+27x-12
Ksenya-84 [330]

We can tell if this is a factor of the polynomial shown by using the remainder theorem.

First, we need to set x + 1 equal to 0.

x + 1 = 0

Now, we solve for x.

x = -1

Now, we can plug this value into the polynomial, and if the solution is 0, it means there is a remainder of 0, which means they divide perfectly.

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3 years ago
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Answer:

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Step-by-step explanation:

It should be the circle with its center on point (2,5) and radius is 10.

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3 years ago
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if you have a rectangle with a length of 0.5 x + 10 feet and a width of 6 feet how could you find the area written in its simple
Greeley [361]
<h2>Greetings!</h2>

Answer:

x + 20 = area

Step-by-step explanation:

You need to recall the equation for a rectangle:

Width x Length = Area

So simply plug the values into this:

(0.5x+10) * 6

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Simplified down by dividing by three:

\frac{3x}{3} + \frac{60}{3} = area

<h3>x + 20 = area</h3>
<h2>Hope this helps!</h2>
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2 years ago
Find the rate as a ratio of distance to time 770km, 5hr
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770:5 or 154:1
154 km per hour
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3 years ago
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