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alexdok [17]
3 years ago
8

Factor the perfect square trinomial 25x^2-60x+36

Mathematics
1 answer:
zaharov [31]3 years ago
4 0

Since it is a perfect square trinomial, it is of the form:

a^2x^2-2abx+b^2 which simplifies to (ax-b)^2

Therefore:

sqrt(a)=sqrt(25)=5

sqrt(b)=sqrt(36)=6

Plug in a and b:

(ax-b)^2

(5x-6)^2

Test to make sure it did fit the formula:

-2abx=-60   (where x is 1)

-2(5)(6)=-60

-2(30)=-60

-60=-60

Answer:

(5x-6)^2

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Multiply the second equations by 2:
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we know see that both equations are the same line, this means that there is an infinite amount of solutions to the equation

6 0
3 years ago
What area of the clock is not covered with clock face in square inches
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Hello again,
We know that the clock has rectangular shapes, and the clock face is circle.
Area of the clock is:
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To find the area of the circle:
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3 years ago
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