Question

find it by steps to steps pls​

Answer 1

Answer:

(9a - 4)(9a - 4)

Step-by-step explanation:

81a^2 - 72a + 16

= 81a^2 - 36a - 36a + 16

= 9a(9a - 4) - 4(9a - 4)

= (9a - 4)(9a - 4)

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Answer 2

Answer:

81a^2-72a+16

=81a^2-36a-36a+16

=9a(9a-4)-4(9a-4)

=(9a-4)(9a-4)