jonathanmarkus224 jonathanmarkus224
  • 22-02-2021
  • Mathematics
contestada

factorise the following
4a^2+12a+9​

Respuesta :

nataliar666
nataliar666 nataliar666
  • 22-02-2021

Answer:

i assume u mean factor?

Step-by-step explanation:

Ver imagen nataliar666
Answer Link
djwahid15
djwahid15 djwahid15
  • 22-02-2021

Answer:

(2a+3)2

Step-by-step explanation:

Rewrite

4

a

2

as

(

2

a

)

2

.

(

2

a

)

2

+

12

a

+

9

Rewrite

9

as

3

2

.

(

2

a

)

2

+

12

a

+

3

2

Check the middle term by multiplying

2

a

b

and compare this result with the middle term in the original expression.

2

a

b

=

2

⋅

(

2

a

)

⋅

3

Simplify.

2

a

b

=

12

a

Factor using the perfect square trinomial rule

a

2

+

2

a

b

+

b

2

=

(

a

+

b

)

2

, where

a

=

2

a

and

b

=

3

.

(

2

a

+

3

)

2

Answer Link

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