Question

Could someone explain something to me

Answer 1

what is your question?

Answer 2

Why is (3x + 8)(2x + 6) simplified down to 6x^2 + 34 + 48? Like where did they get the 34

Answer 3

multiply term-by-term and add them together
(3x + 8)(2 x + 6) = 6 x^2 +18x + 16x + 48

Started with 3x and multiplied the other two
then used 8 and multiplied the other two
then added together what I had gotten.

Answer 4

should be \(34x\) not \(34\)

Answer 5

Yes. 34x

Answer 6

okay, so following that if i were to simplify (a + 6)(a+ 3) the answer would be a^2 + 9a + 18??

Answer 7

Right!

Answer 8

Well I have one more that I cannot get and that is (x^2 + xy + y^2)(x-y)

Answer 9

If this is a multiplication, start with x and multiply all those in the group on the left, then use -y and multiply that group again, term by term, then add together all the products you formed that way.

Answer 10

if i have y(y^2) does it become y^3

Answer 11

or y^4

Answer 12

y(y^2) = y^3 the exponents add

Answer 13

okay

Answer 14

I came up with x^8y^9