3 years ago

Can you help me please

Mathematics

1 answer:

Advocard [28]3 years ago

6 0

Honestly, I don’t really know but I believe it’s 3

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Expand the polynomial and simplify: (4xy− 1 8 y^2)^2

Vinvika [58]

Answer: $4y^{2}(2x-9y)^{2}$

Step-by-step explanation:

We have the following polynomial:

$(4xy-18y^{2})^{2}$

This is a polynomial of the form $(a-b)^{2}=a^{2}-2ab+b^{2}$ . Following this rule to expand it, we have:

$(4xy)^{2}-2(4xy)(18y^{2})+(18y^{2})^{2}$

$16x^{2}y^{2}-144xy^{3}+324y^{4}$

Applying common factor $4y^{2}$ :

$4y^{2}(4x^{2}-36xy+81y^{2})$

Note the polynomial inside the parenthesis is a perfect square trinomial, which can be factored to $(2x-9y)^{2}$ . Hence, the final simplification is:

$4y^{2}(2x-9y)^{2}$

3 0

3 years ago

A rectangle has an area of 40 square units. The length is 6 units greater than the width.

vampirchik [111]

The length is 10
The width is 4
4 + 6 = 10
4 x 10 = 40

6 0

3 years ago

Read 2 more answers

Ann purchased a prepaid phone card for $20. Long distance calls cost 11 cents a minute using this card. Ann used her card only o

inn [45]

Answer:

I believe the answer is 33 minutes.

Step-by-step explanation:

20$-16.37 is 3.63$

.11cents × 33 minutes is 3.63$

4 0

3 years ago

I need the answer please

sergeinik [125]

Y=40 I believe this is the answer

4 0

3 years ago

Which is the factorization of 8x2 + 13x – 6?

quester [9]

Answer:

(8x – 3)(x + 2)

Step-by-step explanation:

Hope this helps:)

8 0

3 years ago

Can you help me please ​

Can you help me please