Question

factor the trinomial (or state if prime): check using FOIL.

x^2+9x+1

Answer 1

you cannot factor this over the integers

Answer 2

Prime

Answer 3

you will not find two integers whose product is 1 and whose sum is 9.

Answer 4

use completing the square (x+3)^2=8

Answer 5

thank you all!

Answer 6

so i'm clear, could one of you show me x^2+11x+10?

Answer 7

(x+10)(x+1)

Answer 8

is there a shortcut to getting the answers?

Answer 9

what do u mean shortcut?

Answer 10

like how to approach the prob?

Answer 11

yes.

Answer 12

i have NO IDEA where to start

Answer 13

x^2+11x+10
x^2 + 10x + 1x + 10
x(x+10)+1(x+10)
(x+10)(x+1)

Answer 14

u start off by looking at what two numbers multiplied together will give u the number w/o a variable, then u c if those SAME two numbers added together will give u the middle term ie the term with the variable expression...does that make sense?

Answer 15

Find two numbers that multiply to get 10, and add up to get 11

In general, find two numbers that multiply to get coefficients a*c, and add up to get coefficient b

That's the simplest way I know how to describe it without any confusion. If you can't understand that, consult a personal tutor.

Answer 16

got it! thanks guys