Question

3/5a^4(20a^6-10a^3-5/7) Someone help please

Answer 1

\[\frac{3}{5}a^4(20a^6-10a^3-\frac{5}{7})\]

Answer 2

Is that the problem?

Answer 3

yes

Answer 4

Use the distributive property

Answer 5

First multiply:
\[\frac{3}{5}a^4\times 20a^6\]

Answer 6

What do you get for that?

Answer 7

12a^10

Answer 8

Very good.

Answer 9

Now do:
\[\frac{3}{5}a^4 \times -10a^3\]

Answer 10

-6a^7

Answer 11

And finally:
\[\frac{3}{5}a^6 \times - \frac{5}{7}\]

Answer 12

-15/35a^4

Answer 13

Cancel the 5's before you multiply

Answer 14

3/7a^4

Answer 15

Make it negative

Answer 16

Now write your answer:

Answer 17

\[12a ^{10}-6a ^{7}-\frac{ 3 }{ 7 }a ^{4}\]

Answer 18

\[12a ^{10} - 6a^7-\frac{3}{7}a^4\]

Answer 19

Perfect.

Answer 20

can you help me with another

Answer 21

Possibly

Answer 22

(7a+1)(9a+3)

Answer 23

its factoring

Answer 24

I got 63a^2+30+3

Answer 25

what did i do wrong?

Answer 26

The middle term should be 21a + 9a which is 30a

Answer 27

But you said it is factoring and you multiplied the two factors together so what do the directions say to do?

Answer 28

I need to Foil

Answer 29

i meant foiling not factoring

Answer 30

ok. So it should be 63a^2 + 30a +3

Answer 31

i was close enough

Answer 32

Except what you had was really 63a^2+33

Answer 33

(8x-7)(x+5) is the answer 8x^2+33x-35