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Zinaida [17]
3 years ago
11

–2x(–3x 2 y)(2y) = ? A. 12x 3y 2 B. –3xy2 C. 3xy2 D. –12x 3y 2

Mathematics
1 answer:
Rina8888 [55]3 years ago
3 0

Answer:

Option A - -2x(-3x^2y)(2y)=12x^3y^2

Step-by-step explanation:

Given : Expression -2x(-3x^2y)(2y)

To find : Solve the expression ?

Solution :

Step 1 - Write the expression

-2x(-3x^2y)(2y)

Step 2 - Multiply the first two bracket in multiplication if base are same power get added and apply symbol rule of multiplication (-)(-)=(+)

=(6x^3y)(2y)

Step 3 - Again multiply the bracket,

=12x^3y^2

Therefore, Option A is correct -2x(-3x^2y)(2y)=12x^3y^2

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wariber [46]
Ok so assuming the 0 means minus from typing problems

x^2-10x=-8

to completet  the square
make sure the term in front of x^2 is 1
that is correct
then take 1/2 of the term in front of the x term and square it
-10/2=-5, (-5)^2=25
add that to both sides
x^2-10x+25=17


answer is the first equation
4 0
3 years ago
Which expression is equal to 632?
kkurt [141]

Answer:

3. 2^{3} (3*5^{2}  + 2^{2} )

Step-by-step explanation:

I think your question missed key information, allow me to add in and hope it will fit the orginal one. Please have a look at the attached photo

My answer;

We use oder of operation to solve this question

We have BEDMAS, which means:

  • B - Brackets
  • E - Exponents
  • D - Division
  • M - Multiplication
  • A - Addition
  • S - Subtraction

In 4 answer, only answer is correct:

2^{3} (3*5^{2}  + 2^{2} )

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= 2^{3} (79 + 4)

= 2^{3}*83

= 8*83

= 664

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Step-by-step explanation:

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X/2.7 + 3.6=4.8 solve for x
weqwewe [10]

Answer:

3.24

Step-by-step explanation:

1) minus the whole number, 3.6 from both sides:  

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2) multiply both sides by 2.7 to get the x value on its own:  

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