3 years ago

Factor using ac-method, 15y+6y²-21= ________

Mathematics

1 answer:

Sunny_sXe [5.5K]3 years ago

3 0

$15y+6y^2-21=\\
6y^2+15y-21=\\
3(2y^2+5y-7)=\\
3(2y^2-2y+7y-7)=\\
3(2y(y-1)+7(y-1))=\\
3(2y+7)(y-1)
$

You might be interested in

As 9 hundreds is 9 thousand

s2008m [1.1K]

9 hundreds=900 9 thousands=9,000

6 0

3 years ago

Tiles of individual letters that spell the word "HOMEWORK" are put in a bag. Without replacement, two tiles are drawn. What is t

Lesechka [4]

D is the correct answer

8 0

3 years ago

Read 2 more answers

I need help finding the answer. Would appreciate some help

FromTheMoon [43]

I hope this helps so the first one should be right

7 0

3 years ago

Read 2 more answers

Can somebody explain this to me when 2du = 16xdx ???

tamaranim1 [39]

When you set $u=4x^2+4$ , you end up with the differentials $\mathrm du=8x\,\mathrm dx$ . Multiplying both sides by 2 gives $2\,\mathrm du=16x\,\mathrm dx$ .

Then the integral is

$\displaystyle\int_0^1\frac{16x}{(4x^2+4)^2}\,\mathrm dx=\int_4^8\frac2{u^2}\,\mathrm du=-\frac2u\bigg|_{u=4}^{u=8}=-2\left(\frac18-\frac14\right)=\frac14$

8 0

3 years ago

Leona has 4 nickels, 6 pennies, 7 dimes and 8 quarters in a piggy bank. Leona’s sister Daisy picks a coin at random, record what

Radda [10]

Answer:

nvm.

Step-by-step explanation:

4 0

3 years ago