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makvit [3.9K]
2 years ago
15

Factorise fully 6x + 9x cubed

Mathematics
2 answers:
o-na [289]2 years ago
6 0

Answer:

  • 3375x^3

Step-by-step explanation:

→ \left(6x\:+\:9x\right)^3

→ \left(15x\right)^3      [ add the x inside the bracket ]

→ 15^3x^3       [ remove the bracket ]

→ 3375x^3     [ final answer ]

Veronika [31]2 years ago
4 0

Answer:

3x(3x² + 2x)

Step-by-step explanation:

6x + 9x³

rearrange tribe

9x³ + 6x

factor by grouping

3(3x³ + 2x)

3x(3x² + 2x)

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the first four terms of a geometric progression are 2,10,50,250 a) write down the common ratio of the progression b) write down
VLD [36.1K]

Answer:

The common ratio is 5 and the 5th term is 1250

Step-by-step explanation:

The common ratio is given by

r=U(2)/U (1)

=10/2

=5

The fifth term

U (n)=ar^n-1

U(5)=2(5)^5-1

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3 0
3 years ago
Help me please I’ll give brainlest
Firdavs [7]

Answer:

B

Step-by-step explanation:

-4/2 = -2

-2 + 5 = 3

7 0
3 years ago
Read 2 more answers
1. Simplify - 5b • 4 + 6a - 4a.4-45 + 5-4.-13a - 1
NISA [10]

answer: -8.6a-2b-45

6 0
3 years ago
If f(x)=-x^2+2x, find f(3)-7
igomit [66]

Answer:

f(3) just means to substitute 3 in for x.

Step-by-step explanation:

f(3) just means to substitute 3 in for x.  

f

(

3

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=

−

2

Explanation:

f

(

3

)

=

−

(

3

)

2

+

7

According to the order of operations, first square the 3, which is 9.

f

(

3

)

=

−

9

+

7

The negative sign in front of the x squared is equivalent to multiplying by negative one.

Add -9 and 7 together, which is -2

So,  

f

(

3

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=

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5 0
3 years ago
Which statement explains how you could use coordinate geometry to prove that quadrilateral ABCD is a parallelogram?
max2010maxim [7]

Answer:

The answer is C

Step-by-step explanation:

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I took the test and got it correct.

6 0
3 years ago
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