factorise 81x^2-36x+4
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Answered by
3
Heya user....
We know that a²-2ab+b²=(a-b)²
(9x)²-2*9x*2+(2)²
(9x-2)².
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Hope this will help u
We know that a²-2ab+b²=(a-b)²
(9x)²-2*9x*2+(2)²
(9x-2)².
@@@@@@@@@@@@
Hope this will help u
Answered by
3
Hey!!
Note: for simple factorization, we use (a±b)² = a² + b² ± 2ab
=> here, 81x² - 36x +4 = (9x)² - 2(2)(9x) + (2)² = (9x - 2)²
.'. There u go|||| ^_^
Note: for simple factorization, we use (a±b)² = a² + b² ± 2ab
=> here, 81x² - 36x +4 = (9x)² - 2(2)(9x) + (2)² = (9x - 2)²
.'. There u go|||| ^_^
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