Question

factorise using identities: (a) 9x2 - 4y2 +2(3x + 2y)

Answer 1

Answer:

 9x2 + 6x - 4y2 + 4y

Step-by-step explanation:

Step by Step Solution

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STEP

1

:

Equation at the end of step 1

 ((9•(x2))-(4•(y2)))+2•(3x+2y)

STEP

2

:

Equation at the end of step 2: ((9 • (x2)) -  22y2) +  2 • (3x + 2y)

STEP 3 :

Equation at the end of step 3:

 (32x2 -  22y2) +  2 • (3x + 2y)

Final result :

 9x2 + 6x - 4y2 + 4y