Question

x^2+8x+13

factor trinomial completely

Answer 1

@BrennaM

Answer 2

there is a problem in that it would only factorise if you used the general quadratic formula to find the factors...

Answer 3

this is because 13 is prime, and only has factors of 1 and 13...

Answer 4

so is the polynomial prime?

Answer 5

I'd say so...

Answer 6

how about x^2-4x+3

Answer 7

@campbell_st

Answer 8

do you know the factors of 3 that add to - 4, (hint: they are both negative)

Answer 9

-2?

Answer 10

the factors are -1 and -3 -1*-3 = 3

-1 + -3 = -4

so the factored form is

(x -1)(x - 3)

Answer 11

okay and the next step?

Answer 12

oh thats the final answer?

Answer 13

that sure is