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igor_vitrenko [27]
3 years ago
8

2x^2 -8x + 1 = 0 solving using quadratic formula round to the nearest 10

Mathematics
1 answer:
Mazyrski [523]3 years ago
5 0

Answer:

x=0.129171

x=3.87083

Step-by-step explanation:

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Factor f(x) = 15x^3 - 15x^2 - 90x completely and determine the exact value(s) of the zero(s) and enter them as a comma separated
Illusion [34]

Answer:

x=-2,0,3

Step-by-step explanation:

We have been given a function f(x)=15x^3-15x^2-90x. We are asked to find the zeros of our given function.

To find the zeros of our given function, we will equate our given function by 0 as shown below:

15x^3-15x^2-90x=0

Now, we will factor our equation. We can see that all terms of our equation a common factor that is 15x.

Upon factoring out 15x, we will get:

15x(x^2-x-6)=0

Now, we will split the middle term of our equation into parts, whose sum is -1 and whose product is -6. We know such two numbers are -3\text{ and }2.

15x(x^2-3x+2x-6)=0

15x((x^2-3x)+(2x-6))=0

15x(x(x-3)+2(x-3))=0

15x(x-3)(x+2)=0

Now, we will use zero product property to find the zeros of our given function.

15x=0\text{ (or) }(x-3)=0\text{ (or) }(x+2)=0

15x=0\text{ (or) }x-3=0\text{ (or) }x+2=0

\frac{15x}{15}=\frac{0}{15}\text{ (or) }x-3=0\text{ (or) }x+2=0

x=0\text{ (or) }x=3\text{ (or) }x=-2

Therefore, the zeros of our given function are x=-2,0,3.

7 0
3 years ago
Ax + bx = 0<br> Solve equation for x
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X=0 is the value....
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7x ^4 minus 5x ^4 =
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Answer:

2x^{4}

Step-by-step explanation:

You would subtract 7 and 5 and you would leave the exponent so it would be 2x^{4}

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3 years ago
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melamori03 [73]

Answer:

c ???

Step-by-step explanation:

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2 years ago
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How do I work this out ?
podryga [215]

Answer:

-4

Step-by-step explanation:

First, multiply

-12*2+8*2/-5-(-7)

= -8/-5-(-7)

Second do -5-(-7)

= -8/2

= -4

3 0
3 years ago
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