Identify the factors of x2 − 4x − 12.

(x + 4)(x − 3)

(x − 4)(x + 3)

(x − 2)(x + 6)

(x + 2)(x − 6)

Question

Identify the factors of x2 − 4x − 12. 

(x + 4)(x − 3) 

(x − 4)(x + 3) 

(x − 2)(x + 6) 

(x + 2)(x − 6)

skullpatrol · Answer

Any ideas?

anonymous · Answer

D ?

skullpatrol · Answer

Why?

anonymous · Answer

well i asked my teacher and she was it was the answer.

anonymous · Answer

shes not good at explaining though

skullpatrol · Answer

Hmm..

skullpatrol · Answer

Let's do it together: Multiply the first terms of the binomials, what do you get?

anonymous · Answer

the binomials are 2 and 4 right ? or by terms u mean x and y ?

skullpatrol · Answer

$$(x + 2)$$is one binomial and$$(x − 6)$$is another binomial.
Each of x, 2 and -6 are called terms.

skullpatrol · Answer

A monomial is an expression that is either a numeral, a variable or the product of a numeral and one or more variables.

skullpatrol · Answer

In the expression a + b 
a and b are called terms

anonymous · Answer

oh okay thank u :) so then what ?

skullpatrol · Answer

Multiply the first terms of the binomials, what do you get?

skullpatrol · Answer

$$(x + 2)(x − 6)$$ hmm?

skullpatrol · Answer

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