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dedylja [7]
3 years ago
7

Solve this quadratic equation using factorisation. I will give brainliest, 5 stars and thanks! :) Kind of urgent, I don't have l

ong to hand my assignment in.
x^2 - 6 = 5x

(Please explain how you worked it out as well, I'm not very confident with this and I need to know how it's done. Thank you :) )
Mathematics
1 answer:
laiz [17]3 years ago
4 0

Answer:

x2 + 5x-6

Step-by-step explanation

Consider the form

x

2

+

b

x

+

c

. Find a pair of integers whose product is

c

and whose sum is

b

. In this case, whose product is

−

6

and whose sum is

5

.

−

1

,

6

Write the factored form using these integers.

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Which sequence is geometric and has 14 as its fifth term and 12 as the common ratio?
ss7ja [257]
Geometric sequence is
an=a1(r)^(n-1)
an=nth erm
a1=first term
r=common ratio

5th term=14
a5=a1(12)^(5-1)=15

a1(12)^4=15
a1(20736)=15
divide both sides by 20736
a1=15/20736=5/6912
geometric sequence is
an=(5/6912)(12)^(n-1)
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Step-by-step explanation:

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