What is the factored form of x2 plus x-12?

Answer 1

-10

Answer 2

x^2 + x - 12

Since 'x^2' term has a coefficient of '1' (N0 number), then we look at the constant, which is '12'.

We need two number that multiply to '12' and 'add' to '1'

The factors of '12' are, 1,12 : 6,2 ; 3,4. This last one satisfies the addition.

Hence

Set up brackets

( x 4 )(x 3)

Which signs? We note that the constant is 'minus' So the signs in the brackets are different. We also note that the 'x' term is positive(+) , so the larger number is positive.

Hence (x 4)(x 3) becomes ( x + 4)( x - 3).

Fully factored!!!!

Answer 3

x2+x-12 = (x+4)(x-3)