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san4es73 [151]
2 years ago
7

Factorise the following expressions 5x^2-25xy​

Mathematics
1 answer:
Natali [406]2 years ago
3 0

Answer: 5x ( x - 5y )

Step-by-step explanation:

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Dont know if this helps but heres something.

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Y = x^2+ 7x - 5 can be written in the form y = (x + a)^2+b
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Answer:

see explanation

Step-by-step explanation:

The equation of a parabola in vertex form is

y = (x - h)² + k (h, k) are the coordinates of the vertex

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To express in vertex form use the method of completing the square

add/subtract ( half the coefficient of the x- term )²

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y = (x + \frac{7}{2} )² - \frac{49}{4} - \frac{20}{4}

y = (x + \frac{7}{2} )² - \frac{69}{4}

Hence

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Step-by-step explanation:


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