Question

Simplify: (-3y)2(2x2)

-6x2y2
12x3y
12x3y2
None of the above

Answer 1

its very simple question!!!!!!!!!!

Answer 2

\[(-3y)^2(2x^2)\]

Answer 3

Is that the problem?

Answer 4

Use the rule of exponents.

Answer 5

yes

Answer 6

Have you used the Associative property before? It can be used both addition, multiplication, subtraction, but for multiplication, it states the following:\[a(b c)=(ab)c\] It just means that multiplication can be done in any order.

Also, we need to know the following exponent law:\[(ab)^x=a^xb^x\] This just means that if we take values in a bracket to a power, then that can be re-written as all the numbers being taken to the same power. e.g. \((2*3)^2=2^2*3^2=4*9=36\).

Applying rules we get:\[(-3y)^2(2x^2)=(-3^2y^2)(2x^2)=(9y^2)(2x^2)=(9*2)(x^2y^2)=18x^2y^2\]

@InsanelyChaotic

Answer 7

simplified?

Answer 8

That's the final simplified form. It cannot be simplified further.

Answer 9

-6x2y2
12x3y
12x3y2
None of the above

Answer 10

Notice how I first used the exponent law on (-3y)^2 and the associative property to regroup the numbers so I can multiply 9 and 2 and x^2y^2 separately. And that gives me the answer.

Answer 11

So what's the right answer then? @InsanelyChaotic

Answer 12

D

Answer 13

Exactly.

Answer 14

Now may be try doing some questions yourself? That's the best way to learn. @InsanelyChaotic

Answer 15

thank you, i did but i got stuck SO