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Liula [17]
2 years ago
9

Factorize ax^2 + bx by using identities

Mathematics
1 answer:
navik [9.2K]2 years ago
4 0

Answer:

ax^2+bx=x(ax+b)

Please mark as brainliest

Step-by-step explanation:

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Write the first 4 terms of the sequence defined by the given rule f(n)=n2 -1
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Answer:

<h2>0, 3, 8, 15</h2>

Step-by-step explanation:

Substitute n = 1, n = 2, n = 3 and n = 4 to the equation f(n) = n² - 1:

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It took emily 25 min to rideHer bicycle to the repair shop in one hour and 15 minutes to walk back home. If Emily her bicycle to
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Step-by-step explanation:

Let x represent the distance of the repair shop from her house.

Let y represent Emily's speed when riding.

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It took Emily 25 min to ride her bike to the repair shop. Converting 25 min to hours, it becomes 25/60 = 5/12 hours.

Distance covered,

x = y × 5/12 = 5y/12

It took her 1h 15 min to walk back home. Converting to hours, it becomes 1 + 15/60 = 1 1/4 = 5/4

If she can ride her bike 8km/h faster than she can walk, it means that her speed while walking would be y 8 8

Therefore,

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x= 5/4(y - 8) = (5y - 40)/4

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Crossmultiplying, it becomes

5y × 4 = 12(5y - 40)

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60y - 20y = 480

40y = 480

y = 480/40 = 12

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