Question

9. Which of the following is the factorization of the quadratic below?
x2 - 5x + 4

A. (x - 2)(x - 2)
B. (x + 4)(x + 1)
C. (x - 4)(x - 1)
D. (x - 4)(x + 1)

Answer 1

pick two numbers such that they :
1) multiply to 4
2) add up to -5

Answer 2

knw how to pick such two numbers ?

Answer 3

nope @ganeshie8

Answer 4

try picking them from factors of 4 :

4*1 = 4
however 4+1 = 5 which is not negative 4

so this wont work

Answer 5

next try -4 and -1

(-4)(-1) = 4
(-4) + (-1) = -5

this seem to fit the requirement, eh

Answer 6

\[x^2-5x+4 = (x-4)(x-1)\]

Answer 7

then just solve?

Answer 8

then you're done
look at ur options

Answer 9

b?

Answer 10

Here is how you can factor many quadratics with ease.

Answer 11

was i right though dude?

Answer 12

B is not correct no.

Answer 13

frick it was a wasnt it

Answer 14

You can check it by using F.O.I.L. and seeing what it comes out too.
B. (x+4)(x+1) so x^2 +5x + 4 is what we get.

Answer 15

F.O.I.L. stands for First. Outside. Inside. Last.