3 years ago

Multiply out 5x (x + 3y)

Mathematics

2 answers:

GrogVix [38]3 years ago

7 0

Answer:

5x²+15xy

Step-by-step explanation:

5x(x+3y)=

5x²+15xy

If you need more steps or more explanation, reply to this answer.

il63 [147K]3 years ago

3 0

Answer:

Step-by-step explanation:

5x(x+3y)

5x^2+15xy

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Simplify x^1/3(x^1/2+2x^2)

Marizza181 [45]

Answer:

$x^{5/6 } + 2\cdot x^{7/3}$

Step-by-step explanation:

Let be $x^{1/3}\cdot (x^{1/2} + 2\cdot x^{2})$ , which can be simplified solely by algebraic means. We proceed to describe all the steps needed for simplification:

1) $x^{1/3}\cdot (x^{1/2} + 2\cdot x^{2})$ Given.

2) $x^{1/3}\cdot x^{1/2} + 2\cdot (x^{1/3}\cdot x^{2})$ Distributive and associative properties.

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2 years ago

If AK= 14, EK=17, BK= 7 , What is the length of DK? 12.7 8.5 7.0 3.5

Elden [556K]

To get the value of DK we use proportionality:
AK/EK=BK/KD
thus plugging the values we get:
14/17=7/KD
getting the reciprocal of getting both sides we have:

17/14=KD/7
thus
KD=17/14×7
KD=8.5
thus

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3 years ago

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sp2606 [1]

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