Question

6-12). Factor the polynomial completely.
5x^2 - 28x + 15 =

Answer 1

is it equated to 0?

Answer 2

you dont have to equate it to zero to factor it :)

Answer 3

oh didnt see that..lol

Answer 4

to factors of 75 that add to 28...

Answer 5

i though it was equated to zero..

Answer 6

*two

Answer 7

3 and 25 right?

(x-3/5)(x-25/5) ; reduse and reuse :)

Answer 8

\(5x^2-25x-3x+15\)
\(5x(x-5)-3(x-5)\)
\((5x-3)(x-5)\)

Answer 9

5x -3; x-5

Answer 10

you find the zeros, also called roots, of a polynomial by equating it to zero

Answer 11

so what are these questions part of?

Answer 12

ok.. i get it now.. thanks guys..

Answer 13

am having a final comming up and i had to do some math submission on line .. my time is running out and i am now trying to accomplish them..

Answer 14

good luck with the final :)

Answer 15

thank you.. very much for that..