Question

What is 9x^2-24x+ 16

Answer 1

a

2

−

2

a

b

+

b

2

=

(

a

−

b

)

2

with

a

=

3

x

and

b

=

4

9

x

2

−

24

x

+

16

=

(

3

x

)

2

−

(

2

⋅

(

3

x

)

⋅

4

)

+

4

2

=

(

3

x

−

4

)

2

Answer 2

9X^2-24X+16=(3X-4)(3X-4)=(3X-4)^2